当时

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

可以说，经过隋唐五代的逐步开放，直到北宋期，才在城市中有了广泛的设置，当的都城东京是最为典型的代表。

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

当流的泛生说的遗传概念意味着遗传是一个融合的过程。

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

对当不想穿着裙子的大胆女性来说，松垮的灯笼裤象征着自由。

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

在当，欲将空客完全私有化的压力与日俱增，性化最为人们所需要。

Do you have any proof to substantiate your alibi?

你有证据表明你当不在犯罪现场吗？

He was the only one boy awake at that time.

他是当惟一醒着的男孩。

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

没有证据证明他当在犯罪现场。

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

你可能记得当他正在从军。

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

约翰当少不更事, 轻易就坠入了情网。

Though it was raining, he went there.

虽然当正下着雨，他还是到那里去了。

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

她戴着当流的扑粉假发。

The presumption is that he had lost his way.

推想起来, 他当是迷了路。

He wore his hair in the prevailing fashion.

他的头发梳的是当的发型。

In retrospect, I think that I was wrong.

回想起来，我觉得当我错了。

Motherhood was for her a journey into the unknown.

做母亲当对她来说是开始一次探险之旅。

I was in a quandary about whether to go.

我当正犹豫到底去不去。

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

-----是长官的军营，100间住所，在1820年，当Sylvanus Thayer上尉任长官的候建造的。

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间,当是提高士气——特别是对那些从事国防工作的人员而言。

You were driving at ninety miles an hour.

Have anything to say for yourself?你当的驾驶速已达90英里,你有什么要辩解的吗?

I was too preoccupied to hear the bell.

当我出神地想着心事,没有听见门铃响。