I'm not sure.我不确定。

You must not do this.你千万不能这么做。

Didn't I see you at the party last week?我在上周的聚会上见过你, 对不对？

Isn't she pretty?她很漂亮, 不是吗？

Shouldn't you have offered to help?你难道不应该施以援手吗？

Why didn't you tell me sooner?你怎么不早点儿告诉我呢？

He's been a great husband, hasn't he?他一直是个很不错的丈夫, 不是吗？

Why don't you fill out an application?你先填一下申请表好吗？

I hope not我希望不是

I'm afraid not恐怕不行；恐怕没有

Can you lend me £10?—I'm afraid not.你能借我10英镑吗？——恐怕不行。

Are you coming or not?你是否会来？

This is a not unusual occurrence.这种事并不少见。

I'm not totally convinced that she's right.我并不完全相信她是对的。

Have you finished?—Not yet.你完成了吗？——还没有。

Not every applicant had a degree.不是所有的求职者都有学位。

I sent in several reports but not one was published.我提交了好几篇报告, 但一篇都没有发表。

I work with her because she is the best – not because she is my sister.我与她共事是因为她是最出色的——并不是因为她是我姐姐。

The animal was not five yards away.那只动物就在不到5码远的地方。

I saw him not five minutes ago.我不到5分钟前还见过他。

Oh no, not him again!哦不, 不会又是他吧！

But aren't you worried?—No, not at all.但你不担心吗？——不, 根本不担心。

He looked pale and not at all well.他看起来脸色苍白, 气色一点儿都不好。

Thank you.—Not at all.谢谢你。——不客气。

James is not only handsome, he's also very tall.詹姆斯不仅长相英俊, 而且个子很高。

There is always a black market, not just in Britain.黑市一直存在, 不只是在英国。

I expect to lose the game – not that I mind.我预感要输掉比赛了——并不是说我很在意。

You are really going to love meeting him – not!你会很愿意跟他见面——才怪呢！