We can find the size of something by means of measurement.
我们可以用测量法求得某物的体积。
It's important to try and make something of your life.
在一生中有所成就是很重要的`。
First try to do something that is within your scope.
你先试着做一件自己力所能及的事。
I'm sure she's keeping something back from us.
我肯定她有什么事瞒着我们。
Can you give me something to help me get to sleep?
你能不能给我点能让我入睡的东西？
This could be the start of something big.
这或许是要有大事的苗头。
I have something important to tell you.
我有重要的事情要告诉你。