1. These men work underground for 6 hours at a time , mining for coal.
    这些人在地下工作一次挖煤6小时。

2. This may seem a paradoxical claim to make at a time when mankind is so much preoccupied with weapons of destruction.
    在人类如此全力贯注于毁灭性武器的时代，这看来可能是一种自相矛盾的主张。

3. There´s a time to work and a time to play.
    有工作的时间, 也要有娱乐的时间.

4. The postmark was clear. The date was clear too.
    邮戳很清楚, 日期也很清楚.

5. The city at one time must have been prosperous, for It enjoyed a high level of civilization.
    这座古城在一个时期准是很繁荣的,因为它曾享有高度文明.

6. Though the sound could be heard clearly, it took me a long time to react.
    虽然声音听得很清楚，可我过了好一会才反应过来。

7. This time it was the postman and he wanted me to sign for a registered letter!
    这次是邮递员让我签收一封挂号信！

8. The spheres had been magnetized and attracted or repelled each other all the time.
    这些球是经过磁化的，它们一直在互相排斥或互相吸引着。

9. The college was at one time of repute.
    这学院一度是所名牌大学。

10. The New Year is a time for resolutions.
    新年是下决心的时候.