aren

Doctors still aren't sure what causes cot deaths.

医生仍不确定婴儿猝死的原因。

At the highest executive levels earnings and performance aren't always correlated.

在最高管理层，收入与工作表现并不总是相关的。

You're a scheming little devil, aren't you?

你是个耍阴谋诡计的小魔鬼，对不对？

Things aren't ideal, but that's the best you can hope for.

事情并不理想，但你只能指望这样了。

You're quite a party animal aren't you, out there every night.

你就是为派对而生的，不是吗，每天晚上你都去参加派对。

The soil drains freely and slugs aren't a problem.

土壤排水畅通，鼻涕虫就不会造成什么麻烦。

Aren't you supposed to be on sentry duty?

你不是应该在站岗吗？

Wild guesses aren't much in my line.

瞎猜并不是我的专长。

Hopewell's success begs the question: why aren't more companies doing the same?

霍普韦尔的成功让人不禁要问：为什么其他公司不效仿呢？

Why aren't all lenses supplied with a lens hood?

为什么不给所有的镜头都配上遮光罩呢？

Life is tough for kids who aren't keeping up in school.

孩子们如果在学校里功课不好，日子就会不好过。

You are a very bad loser Lou, aren't you?

卢，你这人输不起，不是吗？

Come on mate, things aren't that bad.

别灰心，兄弟，事情没那么糟。

Most of these people aren't very well off.

这些人大都不算太富裕。

My own souffles aren't up to much.

我做的蛋奶酥拿不出手。