全国英语等级考试PETS四级难词精选2a
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(单词翻译:双击或拖选)

oath [5EuW] n.誓言, 宣誓, 诅咒 

obsolete1 [5CbsEli:t] adj.荒废的, 陈旧的n.废词, 陈腐的人 

obstacle [5CbstEkl] n.障碍, 妨害物 

obstinate2 [5Cbstinit] adj.倔强的, 顽固的 

obstruction3 [Eb5strQkFEn] n.阻塞, 妨碍, 障碍物 

opaque4 [Eu5peik] n.不透明物 adj.不透明的, 不传热的, 迟钝的 

optical [5CptikEl] adj.眼的, 视力的, 光学的 

optimistic(al) [7Cpti5mistik] adj.乐观的 

optimize5 [5Cptimaiz] vt.使最优化 

orchard6 [5C:tFEd] n.果园, 果园里的全部果树, <美俚>棒球场 

ore [C:(r)] n.矿石, 含有金属的岩石 

originate [E5ridVineit] vt.引起, 发明, 发起, 创办 vi.起源, 发生 

orthodox [5C:WEdCks] adj.正统的, 传统的, 习惯的, 保守的, 东正教的 

outfit7 [5autfit] n.用具, 配备, 机构, 全套装配, vt.配备, 装备vi.得到装备 

outset [5autset] n.开端, 开始 

overhaul8 [7EuvE5hC:l] v.检查 

overlap9 [5EuvE5lAp] v.(与...)交迭 

overwhelm [5EuvE5welm] vt.淹没, 覆没, 受打击, 制服, 压倒 

pant [pAnt] v.气喘 n.气喘 

parachute [5pArEFu:t] n.降落伞 

paralyze [5pArElaiz] vt.使瘫痪, 使麻痹 

parasite10 [5pArEsait] n.寄生虫, 食客 

particle [5pB:tikl] n.粒子, 点, 极小量, 微粒, 质点, 小品词, 语气 

patron [5peitrEn] n.(对某人, 某种目标, 艺术等)赞助人, 资助人 

pave [peiv] v.铺 

peculiarity11 [pi7kju:li5Ariti] n.特性, 怪癖 

pendulum12 [5pendjulEm] n.钟摆, 摇锤 

penicillin13 [7peni5silin] n.[微] 青霉素(一种抗菌素,音译名为盘尼西林) 

peninsula [pi5ninsjulE] n.半岛 

perpetual [pE5petjuEl] adj.永久的 

perplex [pE5pleks] v.困惑 

persecute14 [5pE:sikju:t] v.迫害 

perspective [pE5spektiv] n.透视画法, 透视图, 远景, 前途, 观点, 看法, 观点, 观察 

pessimistic [7pesi5mistik] adj.悲观的, 厌世的 

pinch [pintF] n.捏, 撮, 收缩, 紧急关头, 匮乏, 压力 vt.掐, 夹痛, 修剪, 勒索, 使感缺乏, 使萎缩, 偷vi.收缩, 节省 

pirate [5paiErit] n.海盗, 盗印者, 盗版者, 侵犯专利权者 vt.盗印, 盗版, 掠夺, 翻印vi.做海盗 

piston15 [5pistEn] n.[机] 活塞, 瓣 

plague [plei^] n.瘟疫, 麻烦, 苦恼, 灾祸vt.折磨, 使苦恼, 使得灾祸 

plausible16 [5plC:zEbl] adj.似是而非的 

pneumonia17 [nju(:)5mEunjE] n.[医] 肺炎 

porcelain18 [5pC:slin] n.瓷器, 瓷adj.瓷制的, 精美的, 脆的 

preliminary [pri5liminEri] adj.预备的, 初步的 

presumably [pri5zju:mEbEli] adv.推测起来, 大概 

prevalent [5prevElEnt] adj.普遍的, 流行的 

prey19 [prei] n.被掠食者, 牺牲者, 掠食vi.捕食, 掠夺, 折磨 

prick20 [prik] vt.刺, 戳, 刺痛, 竖起vi.刺, 竖起n.扎, 一刺, 刺痛, 锥, 阴茎adj.竖起的 

primitive21 [5primitiv] adj.原始的, 远古的, 粗糙的, 简单的 

proceeding22 [prE5si:diN] n.行动, 进行,会议录, 学报 

profile [5prEufail] n.剖面, 侧面, 外形, 轮廓 

propeller23 [prE5pelE] n.推进者, 推进物, 尤指轮船, 飞机上的螺旋推进器 

proposition [7prCpE5ziFEn] n.主张, 建议, 陈述, 命题 

propulsion [prE5pQlFEn] n.推进, 推进力 

protein [5prEuti:n] n.[生化] 蛋白质adj.蛋白质的 

proton [5prEutCn] n.[核] 质子 

provoke [prE5vEuk] vt.激怒, 挑拨, 煽动, 惹起, 驱使 

puff24 [pQf] n.一阵喷烟, 肿块, 蓬松, 吹嘘, 宣传广告v.喷出, 张开, 夸张, (使)膨胀, (使)骄傲, 喘息, 鼓吹, 吹捧 

puppet [5pQpit] n.傀儡, 木偶 

qualitative25 [5kwClitEtiv] adj.性质上的, 定性的 

quench26 [kwentF] vt.结束, 熄灭,淬火vi.熄灭, 平息 

racket [5rAkit] n.球拍, 喧闹纷乱 v.过着花天酒地的生活 

radiator27 [5reidieitE] n.散热器, 水箱, 冷却器, 电暖炉, 辐射体 

rake [reik] n.耙子, 斜度, 向船尾的倾斜, 放荡者v.搜索, 掠过, 用耙子耙, (使)倾斜 

rally [5rAli] v.召集 

razor [5reizE] n.剃刀 vt.剃 

reactor28 [ri(:)5AktE] n.反应堆 

recipe [5resipi] n.处方 

reciprocal [ri5siprEkEl] adj.互惠的, 相应的, 倒数的, 彼此相反的n.倒数, 互相起作用的事物 

reconcile [5rekEnsail] vt.使和解, 使和谐, 使顺从 

rectify29 [5rektifai] vt.矫正, 调整, [化] 精馏 

reed [ri:d] n.芦苇, 芦笛, 簧片, 管乐器 

reel ri:l] n.(棉纱, 电线等的)卷轴, (磁带等的)一盘, 旋转, 蹒跚 vt.卷...于轴上, 使旋转vi.蹒跚地走, 旋转, 眩晕, 骚乱, 退缩, 摇晃



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1 obsolete T5YzH     
adj.已废弃的,过时的
参考例句:
  • These goods are obsolete and will not fetch much on the market.这些货品过时了,在市场上卖不了高价。
  • They tried to hammer obsolete ideas into the young people's heads.他们竭力把陈旧思想灌输给青年。
2 obstinate m0dy6     
adj.顽固的,倔强的,不易屈服的,较难治愈的
参考例句:
  • She's too obstinate to let anyone help her.她太倔强了,不会让任何人帮她的。
  • The trader was obstinate in the negotiation.这个商人在谈判中拗强固执。
3 obstruction HRrzR     
n.阻塞,堵塞;障碍物
参考例句:
  • She was charged with obstruction of a police officer in the execution of his duty.她被指控妨碍警察执行任务。
  • The road was cleared from obstruction.那条路已被清除了障碍。
4 opaque jvhy1     
adj.不透光的;不反光的,不传导的;晦涩的
参考例句:
  • The windows are of opaque glass.这些窗户装着不透明玻璃。
  • Their intentions remained opaque.他们的意图仍然令人费解。
5 optimize WIoxY     
v.使优化 [=optimise]
参考例句:
  • We should optimize the composition of the Standing Committees.优化人大常委会组成人员的结构。
  • We should optimize our import mix and focus on bringing in advanced technology and key equipment.优化进口结构,着重引进先进技术和关键设备。
6 orchard UJzxu     
n.果园,果园里的全部果树,(美俚)棒球场
参考例句:
  • My orchard is bearing well this year.今年我的果园果实累累。
  • Each bamboo house was surrounded by a thriving orchard.每座竹楼周围都是茂密的果园。
7 outfit YJTxC     
n.(为特殊用途的)全套装备,全套服装
参考例句:
  • Jenney bought a new outfit for her daughter's wedding.珍妮为参加女儿的婚礼买了一套新装。
  • His father bought a ski outfit for him on his birthday.他父亲在他生日那天给他买了一套滑雪用具。
8 overhaul yKGxy     
v./n.大修,仔细检查
参考例句:
  • Master Worker Wang is responsible for the overhaul of this grinder.王师傅主修这台磨床。
  • It is generally appreciated that the rail network needs a complete overhaul.众所周知,铁路系统需要大检修。
9 overlap tKixw     
v.重叠,与…交叠;n.重叠
参考例句:
  • The overlap between the jacket and the trousers is not good.夹克和裤子重叠的部分不好看。
  • Tiles overlap each other.屋瓦相互叠盖。
10 parasite U4lzN     
n.寄生虫;寄生菌;食客
参考例句:
  • The lazy man was a parasite on his family.那懒汉是家里的寄生虫。
  • I don't want to be a parasite.I must earn my own way in life.我不想做寄生虫,我要自己养活自己。
11 peculiarity GiWyp     
n.独特性,特色;特殊的东西;怪癖
参考例句:
  • Each country has its own peculiarity.每个国家都有自己的独特之处。
  • The peculiarity of this shop is its day and nigth service.这家商店的特点是昼夜服务。
12 pendulum X3ezg     
n.摆,钟摆
参考例句:
  • The pendulum swung slowly to and fro.钟摆在慢慢地来回摆动。
  • He accidentally found that the desk clock did not swing its pendulum.他无意中发现座钟不摇摆了。
13 penicillin sMXxv     
n.青霉素,盘尼西林
参考例句:
  • I should have asked him for a shot of penicillin.我应当让他给我打一针青霉素的。
  • Penicillin was an extremely significant medical discovery.青霉素是极其重要的医学发现。
14 persecute gAwyA     
vt.迫害,虐待;纠缠,骚扰
参考例句:
  • They persecute those who do not conform to their ideas.他们迫害那些不信奉他们思想的人。
  • Hitler's undisguised effort to persecute the Jews met with worldwide condemnation.希特勒对犹太人的露骨迫害行为遭到世界人民的谴责。
15 piston w2Rz7     
n.活塞
参考例句:
  • They use a piston engine instead.他们改用活塞发动机。
  • The piston moves by steam pressure.活塞在蒸汽压力下运动。
16 plausible hBCyy     
adj.似真实的,似乎有理的,似乎可信的
参考例句:
  • His story sounded plausible.他说的那番话似乎是真实的。
  • Her story sounded perfectly plausible.她的说辞听起来言之有理。
17 pneumonia s2HzQ     
n.肺炎
参考例句:
  • Cage was struck with pneumonia in her youth.凯奇年轻时得过肺炎。
  • Pneumonia carried him off last week.肺炎上星期夺去了他的生命。
18 porcelain USvz9     
n.瓷;adj.瓷的,瓷制的
参考例句:
  • These porcelain plates have rather original designs on them.这些瓷盘的花纹很别致。
  • The porcelain vase is enveloped in cotton.瓷花瓶用棉花裹着。
19 prey g1czH     
n.被掠食者,牺牲者,掠食;v.捕食,掠夺,折磨
参考例句:
  • Stronger animals prey on weaker ones.弱肉强食。
  • The lion was hunting for its prey.狮子在寻找猎物。
20 prick QQyxb     
v.刺伤,刺痛,刺孔;n.刺伤,刺痛
参考例句:
  • He felt a sharp prick when he stepped on an upturned nail.当他踩在一个尖朝上的钉子上时,他感到剧烈的疼痛。
  • He burst the balloon with a prick of the pin.他用针一戳,气球就爆了。
21 primitive vSwz0     
adj.原始的;简单的;n.原(始)人,原始事物
参考例句:
  • It is a primitive instinct to flee a place of danger.逃离危险的地方是一种原始本能。
  • His book describes the march of the civilization of a primitive society.他的著作描述了一个原始社会的开化过程。
22 proceeding Vktzvu     
n.行动,进行,(pl.)会议录,学报
参考例句:
  • This train is now proceeding from Paris to London.这次列车从巴黎开往伦敦。
  • The work is proceeding briskly.工作很有生气地进展着。
23 propeller tRVxe     
n.螺旋桨,推进器
参考例句:
  • The propeller started to spin around.螺旋桨开始飞快地旋转起来。
  • A rope jammed the boat's propeller.一根绳子卡住了船的螺旋桨。
24 puff y0cz8     
n.一口(气);一阵(风);v.喷气,喘气
参考例句:
  • He took a puff at his cigarette.他吸了一口香烟。
  • They tried their best to puff the book they published.他们尽力吹捧他们出版的书。
25 qualitative JC4yi     
adj.性质上的,质的,定性的
参考例句:
  • There are qualitative differences in the way children and adults think.孩子和成年人的思维方式有质的不同。
  • Arms races have a quantitative and a qualitative aspects.军备竞赛具有数量和质量两个方面。
26 quench ii3yQ     
vt.熄灭,扑灭;压制
参考例句:
  • The firemen were unable to quench the fire.消防人员无法扑灭这场大火。
  • Having a bottle of soft drink is not enough to quench my thirst.喝一瓶汽水不够解渴。
27 radiator nTHxu     
n.暖气片,散热器
参考例句:
  • The two ends of the pipeline are connected with the radiator.管道的两端与暖气片相连接。
  • Top up the radiator before making a long journey.在长途旅行前加满散热器。
28 reactor jTnxL     
n.反应器;反应堆
参考例句:
  • The atomic reactor generates enormous amounts of thermal energy.原子反应堆发出大量的热能。
  • Inside the reactor the large molecules are cracked into smaller molecules.在反应堆里,大分子裂变为小分子。
29 rectify 8AezO     
v.订正,矫正,改正
参考例句:
  • The matter will rectify itself in a few days.那件事过几天就会变好。
  • You can rectify this fault if you insert a slash.插人一条斜线便可以纠正此错误。
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