Sometimes it is necessary to say no.

有时候说“不”是必要的。

《柯林斯英汉双解大词典》

No one drug will suit or work for everyone and sometimes several may have to be tried.

没有任何一种药会对每个人都适用或有效，有时得试好几种。

《柯林斯英汉双解大词典》

What strange things men—no, what strange things Selenites sometimes take into their heads!

这事情多奇怪啊，人类——不，亚硒人怎么有时会想到这么奇怪的事情啊！

youdao

These problems may appear and then disappear, sometimes resulting in long periods when there are no problems at all.

VOA: special.2009.01.06

You will always get a higher payoff from choosing 67, at least as high and sometimes higher, than the payoff you would have got, had you chosen 80, no matter what else happened in the room.

选择67的话你总会获得较好的收益,至少也是跟选80的收益一样高,有时候比选80的收益更高,不管别人选择的是什么样的策略

耶鲁公开课 - 博弈论课程节选

When the cat's away, the mice will play means people sometimes misbehave when there is no supervision.

VOA: special.2009.09.27

City governments complain they have no powers to prosecute looters, no salary records and sometimes no access to banks in order to pay returning employees.

ECONOMIST: Iraq's post-war disorder

Even where there is no news sometimes you need to make it.

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By definition they are unique, sometimes one-of-a-kind places for which few (or sometimes no) comparables exist.

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