Rivers can differ in size and there is no strict rule on how big a flow of water must be to be called as a river.

河流的流域会有不同，对于有多大的流量才能被称为河流没有严格的规定。

youdao

How big would that tree be?

那棵树将有多巨大呀？

youdao

How big can goldfish grow?

金鱼能长到多大？

youdao

She says the amount of space needed between the plants depends on how big you expect the heads to be.

VOA: special.2009.03.03

So it doesn't matter how big the dictionary is, you can instantaneously retrieve the value associated with the key. Extremely powerful.

因为你可以在线性时间，内得到想要的键对应的值,这太强大了。

麻省理工公开课 - 计算机科学及编程导论课程节选

I would be able to predict their size, because how far they moved depended on how big they were.

我还应当能估计它的大小,因为它能跑多远取决于它的大小

耶鲁公开课 - 生物医学工程探索课程节选

This makes me think how big the world is, and gives me a kind of hope.

BBC: Piecing together puzzles in Cambodia

Given how big plates are becoming in our supersize world, that just doesn't cut it anymore.

WSJ: The New Kitchen Cabinet Rules

How big a test of your leadership at this early stage of your presidency?

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