This bird can 't fly because it' s too heavy.

这只鸟不能飞因为它太胖了。

youdao

Don "t know that you can" t fly, and you will soar like an eagle.

不知道你不会飞，你会像鹰一样高高飞翔。

youdao

Rooster ： I don"t want to risk my neck just to fly.

鸡： 我可不想为了飞而伤着自己。

youdao

And the other part about it is if feathers were twice as heavy, or half as strong, then birds couldn't fly."

VOA: special.2010.06.01

Just like we don't feel comfortable saying that the-- I suppose we could do this with a fruit fly.

就像我们不喜欢说-,我用果蝇来举个例子。

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to take my cylinder now, and the external pressure and the internal pressure are not going to be I'm going to start with my cylinder here, I'm going to put little pegs here so it doesn't fly up.

活塞内外的，压强不相等,我们在,放上插销，以防止活塞。

麻省理工公开课 - 热力学与动力学课程节选

One of them--"appoint a bipartisan oversight board to oversee the implementation of Obamacare"--won't fly.

WSJ: Best of the Web Today

The delicate, single-seat plane cruises around 40 miles per hour and can't fly through clouds.

WSJ: Solar plane plans stops in Phoenix, Dallas, NYC

"We're not saying if you don't fly first class you can't fly, " he says.

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