At one time, walking across the room took all her strength.

曾经有段时间，穿过这个房间得用尽她全部的力气。

At one time 400 men, women and children lived in the village.

曾一度有400个男人、女人和儿童住在这个村子。

At one time, soap-making was not safe.

曾经有一段时间，制造肥皂并不安全。

The parents were asked to interact with their children as they normally would, and about half of children in the study played with puzzles at one time.

研究人员要求这些父母像往常一样与孩子互动，同时研究中大约有一半的孩子曾玩过猜谜游戏。

It includes four steps: seeing a word, getting back its meaning from your memory, connecting it to other words in the same sentence, and then moving on to the next word. This process uses many parts of the brain at one time.

它包括四个步骤：看到一个单词，回忆这个词的意思，将它与句子中其他单词联系起来，再看下一个单词。这个过程同时调动了大脑的很多部分进行工作。

At one time, Henry needed a grammar book for his study.

曾经有一段时间，亨利需要一本语法书来学习。

It seems he used to work for the electricity board at one time.

他好像曾经在电力局工作过。

Everyone, at one time or another, has found some surprise awaiting him.

每个人，曾经都发现有一些惊喜在等着他。

At one time, ecologists believed that species diversity made ecosystems stable.

生态学家曾一度认为，物种多样性使生态系统变得稳定。

He was at once furious and slightly pleased, if a person could be both at one time.

他既生气又有点高兴，如果一个人能同时拥有这两种情绪的话。

At one time it was thought that these matrix grains might be pristine nebular dust, the sort of stuff from which chondrules and inclusions were made.

曾经有人认为，这些基质颗粒可能是原始的星云尘埃，即形成陨石球粒及其内含物的物质。

The fact that lake levels in the semiarid southwestern United States appear to have been higher during the last ice age than they are now was at one time attributed to increased precipitation.

美国西南部半干旱地区的湖泊水位在上一个冰河时代似乎比现在更高，这一事实曾一度归因于降水增加。

The fish lay thousands of eggs at one time.

这种鱼一次产卵数千个。

It would have been better to have thinned the trees over several winters rather than all at one time.

当初要是分几个冬天来疏剪树木，会比一次性疏剪要更好些。

This helps remove the unnecessary fear of having to do a large project all at one time.

这有助于消除对一次性完成大型项目的不必要的恐惧。

To learn a lot of tricks is not to learn a lot at one time.

学到很多东西的决窍，就是不要一下子学很多。

At one time, the world's heaviest rabbit.

曾经，这是世界上最重的兔子。

At one time it used to be a farm village.

过去一段时间那里曾是农村。

You don't need to do them all at one time.

你不需要同时做全部的事情。

At one time, they ran a luggage company.

有一段时间，他们经营一个箱包公司。

And at one time in the past, I almost became extinct.

曾经在过去一个时期，我几乎濒临灭绝。

Did she sleep with them all together at one time?

她一次性跟他们同床吗？

We've probably all seen it at one time or another.

我们可能都曾看到过这样的守则。

Number 6: How can I add multiple tasks at one time?

第6个问题：如何一次添加多个任务？

I believed, at one time, no lessons could teach her that!

我相信，曾经有一个时候，是没法教训她明白那点的！

You can restore more than one table space at one time.

您可以一次恢复多个表空间。

It was at one time white faces, not white bags: white faces.

原来曾用过“白色的面孔“,不是“白色袋子

At one time or another, we've all had a friend who brings us down.

在一个或其他时期，我们都曾有过把我们带下水的朋友。