全部

1·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。《柯林斯英汉双解大词典》

2·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。《柯林斯英汉双解大词典》

3·At one time, soap-making was not safe.

曾经有一段时间，制造肥皂并不安全。

4·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。

5·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。

6·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。

7·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。

8·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。

9·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。

10·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。