Her campaign against insects seemed sensible and useful.

它和昆虫作战似乎是有道理的，是有用的。

I thought Dumbledore would have told you something worthwhile.

我以为邓布利多会告诉有用的信息。

Yes, it's super cheesy, but again, it works.

是的，我知道这非常俗，但同样的，它很有用。

There'd be some useful publicity for you and free tickets and hospitality for your guests.

这是给们的有用的宣传资料，我们将为您的客人提供免费门票和热情款待。

Any kind of spray will work. They hate sprays. Any kind.

任何喷剂都有用。它们讨厌喷剂。任何喷剂都可以。

Sometimes the vending machine is a friend.

有时候自动售货机真的很有用。

A barometer is useful in predicting the weather.

气压计在预测天气方面很有用。

Yet, for all that, it's being useful there.

但尽管此 它还是有用的。

As for the recruiting companies, they prefer the students who can put their book knowledge into daily use, which is far more practical than the certificates.

对用人单位来说，他们喜欢的是那能够实际应用知识的学生，这比证书更为有用。

One useful tip is that things are more likely to be remembered if you are in exactly the same state and place as you were when you learn them.

有个很有用的点子。在学习某个东西的地方或者状态下回忆这个东西的话，会记住更多。

The organisers say they are also considering giving a prize to the slowest cell, since lethargic cells would be a boon for cancer therapy.

组织者说他们也正在考虑给最慢的细胞个奖项，因为呆滞的细胞对癌症治疗来说将是非常有用的。

When making suggestions, modal verbs can be very useful.

做建议时情态动词非常有用。

On balance, I hold the contention that exams are useful rather than harmful.

我认为，考试很有用。

Yes. And Sophia did some research, too. That was useful in developing our approach.

没错，而且Sophia还做了调查。这在我们研究表演方法的时候非常有用。

I believe the rendering of useful service is the common duty of mankind and that only in the purifying fire of sacrifice is the dross of selfishness consumed and the greatness of the human soul set free.

我相信提供有用的服务是人类共同的责任，唯有在牺牲奉献的炼火中，自私自利的渣滓始能烧毁，而人类灵魂的伟大也才能发挥出来。

That is a beautiful occupation. And since it is beautiful, it is truly useful.

这差事真美妙，就是真正有用的了。

There are other ways to think that are more helpful.

还有其他更有用的方法。

If this boss is egocentric, all those nice comments just might work.

这个老板很自我，那好听的话也许就有用。

But the blood doesn't only carry useful ingredients.

但血液中不仅 携带有用的成分。

It is, however, very suggestive. The details are still to be added.

是个极有用的线索，当然还需要把细节拼凑起来。