The ideas have been in circulation for some time.

这些想法已经流行一段时。

I haven't seen him for some time.

我有一段时没见他。

We shall have to extend the payments over an additional period.

我们得把付款期再推延一段时。

These doubts had been gnawing at him for some time.

这些疑虑已经折磨他一段时。

It took him a while to accustom himself to the idea.

他过一段时才习惯这个想法。

Britain was a Roman dependency for a long period.

英国有很长一段时是属地。

A spell of tough luck discouraged him.

一段时厄运使他勇气。

Property sales have been in the doldrums for some time.

房地产销售一段时以来不大景气。

For a time he neglected his studies.

有一段时, 他放松学习。

Mary was restored to health after a period of medical treatment.

经过一段时治疗, 玛丽康复。

A period of acute depression can sometimes follow childbirth.

分娩之后可能会有一段时急性抑郁期。

The statue will remain in the museum for the foreseeable future.

未来一段时这座雕像会继续留在博物馆里。

The headmaster seems to be a fixture in the school for quite a long period.

校长似乎固定在这个学校工作很长一段时。

A spell in the army will cure him of his laziness!

在军队里呆一段时会治好他懒病。

This book will continue to generate excitement for a long time.

这本书将在很长一段时里继续使人们为之激动。

People of different nationalities often take some time to be assimilated into a country.

不同民族人常常要经过一段时才能为一个国家人民所同化。

She’s been ailing for some time.

她身体不适已有一段时。

The circulation of the magazine has been bumping along for some time at around 30, 000.

一段时以来, 杂志销量一直在三万份上下摇摆。

I’m not sure about Johnson—we’d better keep tabs on him until we know we can trust him.

我对约翰逊不太放心——我们最好先观察他一段时，直到我们确信可以信任他。

The custom of couples saving up for a long time before they get married has long gone for a burton.

夫妻婚前为结婚攒上很长一段时钱，这样风俗早已不再流行。