1. Elephants like to have one master just as dogs do, and are capable of a considerable degree of personal affection.
    大象和狗一样，喜欢有一个专一的主人，而且会对主人产生相当深厚的私人感情。

2. Even in terms of biology, a clone would not be identical to the "master copy".
    即使从生物学的角度看，克隆人也不会和"母本"一模一样。

3. But the station master was adamant:
    但站长态度坚决，

4. But the time soon came for us to return.
    但很快就到了我们要回去的时间了，

5. Banks stocked with the frozen sperm of geniuses already exist, but they haven't created a master race because few women are queuing up to get pregnant this way.
    已经有了贮存天才的冷冻精子的精子库，但它们还没有生成一个优等族，原因是很少有妇女排队等候以这种方式怀孕。

6. Without something of this kind, searching for intelligences on other planets would be like trying to meet a friend in London without a pre-arranged rendezvous and absurdly wandering the streets in the hope of a chance encounter.
    没有这手段，要想寻觅其他星球上的智力生命，就如同去伦敦见一位朋友，事先未约定地点，而荒唐地在街上游逛，以期待碰巧遇上一样。

7. When the person smiles, be sure to smile back. But always make an effort to return your gaze (注视) to the person’s eyes as she speaks.
    当其微笑时，你一定也要回报以微笑。但她说话的时候，你总尽量以注视她的眼睛相报。

8. The return of the echo will elapse longer time.
    回声返回所耗的时间越长了.

9. The obedient dog came at his master´s whistle.
    这驯服的狗一听到主人的哨音就过来。

10. The dog wagged his tail when he saw his master.
    这条狗见到主人就摇尾巴。

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