have not

I have not heard from her since she left.

她走后音信杳无.

We have not as yet received a response.

我们还未收到回复。

I'm sorry I have not been able to reply sooner.

迟于作复,歉甚.

These claims have not gone uncontested .

这些说法并非无人提出异议。

Sales have not lived up to expectations this year.

今年的销售额不尽如人意。

I have not decided yet, I am mulling it over in my mind.

我还没决定, 一直在仔细考虑.

Earlier reports of gunshots have not been substantiated.

早先有关枪击的那些报道尚未得到证实。

They have not hesitated in the past to liquidate their rivals.

过去他们曾毫不犹豫地铲除对手。

There are few who have not suffered.

谁都会经受挫折。

Conditions for the poor in Los Angeles have not improved.

洛杉矶穷人的境况仍未得到改善。

Efforts to sandardise English spellings have not been successful.

英语拼写标准化的努力并不成功.

Detectives have not ruled out the possibility that she was abducted.

侦探尚未排除她被绑架的可能性。

The police have not found the runaway to date.

警察迄今没抓到逃犯.

Police have not apprehended her killer.

警察还未抓获谋杀她的凶手。

Details of the proposal have not yet been made public.

提议的细目尚未披露.