If Miss Useful 如果留恋有用
It would be useful if you could nail down the source of this tension.
如果你能弄清这种紧张情绪的根源,会是有用的。
If you don't learn something useful now, you will have difficulty finding a job in the future.
如果你现在不学点有用的东西,将来找工作就会很困难。
Go out and try different activities, and stick to them if you think they're useful.
走出去,尝试不同的活动,如果你认为它们有用就坚持下去。
It would be so easy if you built a cohesive system that carries the entire transaction to create a receipt that is useful.
如果你建立一个,能覆盖整个交易过程,能产生有效的收据的系统,一切都会变得更容易。
What does come out, which is very useful is, if you do run the reaction, here's how much heat comes out.
能得到的结果是,如果我们进行这个化学反应,有多少热量放出,当然这也是很重要的。
Sometimes a blunt cut is useful if you want to sort of grow a sticky end of your choice on it.
这时候钝切口很有用,尤其在你想获得选定的粘性末端的时候
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