It was set up comprehensively as far as Song Dynasty.Dongjing is the most emblematical deputation.

可以说，经过隋唐五代逐步开放，直到北宋时期，才在城市中有了广泛设置，当时都城东京是最为典型代表。

The then current concept of heredity through pangenesis implied a blending process.

当时流行泛生说遗传概念意味着遗传是一个融合过程。

For daring women who didn't want to wear skirts back then, blousy bloomers symbolized freedom.

对当时不想穿着裙子大胆女性来说，松垮灯笼裤象征着自由。

Rationalisation was badly needed.There was growing pressure to convert Airbus into a fully-fledged private company.

在当时，欲将空私有化压力与，理性化最为人们所需要。

Do you have any proof to substantiate your alibi?

你有证据表明你当时不在犯罪现场吗？

He was the only one boy awake at that time.

他是当时惟一醒着男孩。

There is no proof that he was on the crime spot.

没有证据证明他当时在犯罪现场。

As you may recall, he was in the army then.

你可能记得当时他正在从军。

John was in his salad days then and fell in love easily.

约翰当时少不更事, 轻易就坠入了情网。

Though it was raining, he went there.

虽然当时正下着雨，他还是到那里去了。

She wore a powdered wig, as was the fashion of the day.

她戴着当时流行扑粉假发。

The presumption is that he had lost his way.

推想起来, 他当时是迷了路。

He wore his hair in the prevailing fashion.

他头发梳是当时盛行发型。

In retrospect, I think that I was wrong.

回想起来，我觉得当时我错了。

Motherhood was for her a journey into the unknown.

做母亲当时对她来说是开始一次探险之旅。

I was in a quandary about whether to go.

我当时正犹豫到底去不去。

----- The Superintendent's Quarters, Quarters 100, built in 1820 when Captain Sylvanus Thayer was Superintendent.

-----是长官军营，100间住所，在1820年，当时Sylvanus Thayer上尉任长官时候建造。

Washington advocated the coffee break,then,as a morale builder— particularly for the defense workers.

美国政府提倡给人们喝咖啡休息时间,当时是提高士气——特别是对那些从事国防工作人员而言。

You were driving at ninety miles an hour.

Have anything to say for yourself?你当时驾驶时速已达90英里,你有什么要辩解吗?

I was too preoccupied to hear the bell.

当时我出神地想着心事,没有听见门铃响。