jump on sb 向某人乱发脾气
jump the battery 充电
jumping the gun 迫不及待
just a minute 等一等;就来了;且慢
just as well 不如做某事也可
Just as you say. 好吧,随你的便
just follow suit 照办;跟进去
just for the fun of it 只不过好奇罢了
just the ticket, be 正是所需的
just too bad 太可惜;真糟糕
just what the doctor ordered 正合我的心意
keep a running account of 把教授在课堂讲的内容都记下来 keep a straight face 忍住不笑出来
keep an eye on 留意
keep an eye on sth 密切注意
keep body and soul together 继续活下去
keep company 陪伴
keep in touch with 联系
keep it to yourself 保密
keep it under your hat 保密
keep my fingers crossed 交叉手指,乞求某事成功
keep one’s head 镇定
keep one’s head above water 活下去
keep one’s nose to the grand stone 孜孜工作
keep one’s shirt on 不动手打架
keep pace with 保持同步
keep punching¹ 继续努力
keep sb at arm’s length 疏远;保持距离
keep track (of) 登记;记录
keep track of one’s attendance² 留意某人的出勤
keep track of time 记住时间
kick downstairs 被撤职
kick off 开始干某事
kick sb upstairs 明升暗降
kick the bucket 死了
kidding around 老开玩笑
kill time 消磨时间
kill time 消磨时间
kill two birds with one stone 一石二鸟
killing³ one 笑死某人;痛死某人
knock it off 别再讲下去了
Knock on wood. 说话禁忌,赶紧讨个吉利.
knock one flat 把某人打倒在地
knock oneself out 精疲力尽
knock their eyes out 漂亮得使他们目瞪口呆
know one’s onions 精通某事
know one’s way around 熟悉道路
know-it-all 似乎样样事都知道的人
lady-killer 引诱女人的男子
laid eyes on 见过
last final 期末考试的最后一天
last minute rush 最后一分钟的匆忙
last word 最新成就
laughing matter 无关紧要的事
lay aside 储蓄
learn a lesson 受到教训
leave it at that 暂时停止争论
leave it to me 交给我办吧
leave me alone 不要打扰我

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