大才必有大用.

A man of great talents will surely be given important assignments.

异人要大用。

Different people must use.

想入非非者无大用.

Many who build castles in the air cannot build a hut on earth.

最后, 忘记我们从小到大用的线性方法吧.

And, finally, forget the linear approach to learning we grew up with.

下回不管你要干什么，我绝对不会考（试大用这种牵强的借口。

Ok, but don't give me any lame excuses next time I want to do something!

我讨厌坐飞机。一点点气流就让我害怕。吃xanax（一种安眠药）能管很大用。

I hate flying. i freak out at the slightest bit of turbulence. xanax really, really helped me.

皮肤科医生狄波拉说可可粉富含类黄酮，能够使破坏皮肤的自由基失去活性，但除此之外并无大用。

Dermatologist Debra Jaliman says that cocoa is high in flavonoids, which can inactivate skin-damaging free radicals, but otherwise won't cure a breakout.