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1·It can be useful to write a short summary of your argument first.

先把你的论点纲要写下来可能会有帮助。《牛津词典》

2·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。《柯林斯英汉双解大词典》

3·Will robots be useful?

机器人会有用吗？

4·Be useful, and do me a service, said he, in jest.

他开玩笑地说：“做个有用的人，并帮我个忙。”

5·Forward credits could be useful in the squid business.

远期信贷在鱿鱼生意中可能是有用的。

6·Only then will they be useful servants and not Frankenstein's out-of-control monster.

只有到那时，他们才会成为有用处的仆人，而不是成为弗兰肯斯坦里失控的怪物。

7·False beliefs can be useful in a social sense even if they are not useful in a factual sense.

错误的信念虽然在事实意义上没有用，但从社会意义的角度来讲是有用的。

8·We want to hear from him and from other partners in the region what would be useful to help them.

我们希望从他和该地区其他伙伴那里听到对帮助他们有用的信息。

9·She wants to encourage other children to cook because everyone needs to eat, so it's a skill that will always be useful!

她想鼓励其他孩子做饭，因为“每个人都需要吃饭，所以这是一项永远有用的技能！”

10·Although surveys reveal the IDP process to be useful, trainees report a need for additional resources to help them identify a long-term career path and complete an IDP.

尽管调查显示国内流离失所者进程是有用的，但受训人员报告，他们需要更多资源来确定长期职业道路，完成国内流离失所者进程。