1. We are more prone to make mistakes when we are tired.
    当我们疲倦的时候较容易犯错。

2. We are racing against time to build up China into a powerful socialist country.
    我们正在争取时间把中国建设成为强大的社会主义国家。

3. We need more time to take in the situation.
    我们需要更多的时间了解情况。

4. We must give tribute to all those who helped make this a free country.
    我们必须称颂那些为使这个国家成为自由之邦而出力的人。

5. What may be done at any time will be done at no time.
    明日待明日，明日不再来。

6. When anyone opens a current account at a bank, he is lending the bank money, repayment of which he may demand at any time, either in cash or by drawing a cheque in favour of another person.
    任何人在银行开一个活期账户，就等于把钱借给了银行。这笔钱他可以随时提取，提取的方式可以是取现金，也可以是开一张以他人为收款人的支票。

7. It pleasant to escape to a time when life,though hard, was relatively simple.
    逃到一个即使艰苦但比较简朴的时代中去是件愉快的事，

8. We are so familiar with the fact that man ages, that people have for years assumed that the process of losing vigour with time, of becoming more likely to die the older we get, was something self-evident,
    我们对人总是要衰老的现象并不陌生，多年来就已认识到。生命随着时间流失而丧失活力，人随着年龄的增长而接近死亡，这是不言而喻的，

9. We could, at one time, repair ourselves----well enough, at least, to overcome all but the most instantly fatal illnesses and accidents.
    而我们人，在一定时间内是可以自行修复的，除了暴病死或意外事故外，至少足以克服一切疾病和事故。

10. When several elephants are being trained at one time, it is customary for the new arrival to be placed between the stalls of two captives whose training is already well advanced.
    几只象同时训练时，通常是把新到的安置在两头训练得很好的大象的象厩中间，