We needed to do decimals to round up and round down numbers.

我们需要把小数四舍五入成整数。

《柯林斯英汉双解大词典》

If you had a motor here that was causing a paddle to move up and down you could cause waves to form at one end of the tank and move from left to right.

如果这里有一个马达，使桨上下移动，就可以在水槽的一端形成波浪，从左到右扩散。

youdao

Turn it down to set the mood, or turn it up to start the dancing! What's it like to swim like a fish?

把它调小来调节气氛，或者把它调大来开始跳舞！像鱼一样游泳是什么感觉？

youdao

The hotter the weather, the more quickly the waste breaks down into ammonia to be taken up by plants.

VOA: special.2010.03.15

Having done that, it goes back up and picks the second sub-list, which came from there. It's a down to base case, merges it.

就是从那里得来的,完成这些后,回到上一步。

麻省理工公开课 - 计算机科学及编程导论课程节选

And so people definitely go down there to pick up some items that they can't get at Tom Ford or Diesel.

所以人们一定是去那儿采购一些在汤姆•福特和狄塞尔买不到的东西。

关于SOHO - SpeakingMax英语口语达人

You know, they used to be scattered everywhere from California to Virginia, down to Texas, up to Minneapolis.

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And they had to go down to haul water up to their apartment five floors up, but they were making a life.

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It claims data rates of up to 7 Mbps down to the device and up to 2 Mbps up.

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