金星上的一天比一年长

时间：2020-03-18 07:14:54

（单词翻译:单击）

关于一年的定义是一个星球围绕太阳旋转一周需要的时间。而一天是这个星球自转一周所需要的时间。
The scientific definition of a year is the amount of time it takes for a planet to make one revolution around the Sun. Earth’s neighbouring planet, Venus, takes 225 Earth days to revolve1 around the sun. The definition of a day is how long it takes for a planet to do one complete rotation2 on its own axis3. It takes Venus 243 Earth days to do this. In other words, a day on Venus is longer than a year on Venus. The rotation of Venus on its axis is retrograde. It rotates in the opposite direction of Earth and the other planets in the Solar System (Uranus4 spins on its side).
 
The main interesting fact in this report is that Venus’s day is longer than its year.
The scientific definition of a day is the amount of time it takes for a planet to do a full rotation on its axis.
The report mentions Uranus because it is another planet that spins on its axis in a unique way. Venus spins backwards5 and Uranus spins on its side.

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1 revolve NBBzX     
vi.(使)旋转；循环出现
参考例句：
  • The planets revolve around the sun.行星绕着太阳运转。
  • The wheels began to revolve slowly.车轮开始慢慢转动。
2 rotation LXmxE     
n.旋转；循环，轮流
参考例句：
  • Crop rotation helps prevent soil erosion.农作物轮作有助于防止水土流失。
  • The workers in this workshop do day and night shifts in weekly rotation.这个车间的工人上白班和上夜班每周轮换一次。
3 axis sdXyz     
n.轴，轴线，中心线；坐标轴，基准线
参考例句：
  • The earth's axis is the line between the North and South Poles.地轴是南北极之间的线。
  • The axis of a circle is its diameter.圆的轴线是其直径。
4 Uranus 3pZyA     
n.天王星
参考例句：
  • Uranus is unusual because it is tilted.天王星非常特殊，因为它是倾斜的。
  • Uranus represents sudden change and rebellion.天王星代表突然性的改变和反叛。
5 backwards BP9ya     
adv.往回地，向原处，倒，相反，前后倒置地
参考例句：
  • He turned on the light and began to pace backwards and forwards.他打开电灯并开始走来走去。
  • All the girls fell over backwards to get the party ready.姑娘们迫不及待地为聚会做准备。

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