1. Every solid object will reflect a sound, varying according to the size and nature of the object.
    任何固体者反射声音，反射的声音因物体的大小和性质的不同而不同。

2. Basically, most students leave knowing they will have to do without their accustomed parental protection and learn to take care of themselves.
    事实上，大多数学生在离家时，都知道他们将在没有原来所习惯了的父母照顾的情况下自己生活, 学会自己照料自己。

3. Fulfilling its designer´s dream to create ´an enormous object drawn as faintly as possible´.
    实现了设计者企图创造一个"尽量用细线条勾画出一个庞然大物"的梦想。

4. If it were not for the protection we get from insect-eating animals.
    如果人类不是受一些食虫动物的保护。

5. There was a time when the owners of shops and businesses in Chicago had to pay large sums of money to gangsters in return for ´protection.´
    曾经有一个时期,芝加哥的店主和商行的老板们不得不拿出大笔的钱给歹徒以换取´保护´。

6. They have fewer opportunities to learn the value of money, and have less experience in learning to deal with delay in satisfaction, when every requested object is given on demand.
    由于他们一提出要求时，每一样东西都马上就能得到满足，他们了解金钱价值的机会就比别人少，而且他们处理一时得不到满足的情况的经验也少。

7. The men on the ship saw a strange object lying on the beach. It was moving toward them — perhaps twenty feet an hour.
    船上的人看见海滩上躺着一个奇怪的东西。这个东西正向他们爬过来--速度大概是每小时20英尺。

8. His object of studying English is to know more about England and the English people.
    他学习英语的目的是更多地了解英国和英国人民。

9. He lived under the protection of a strong and brave chief.
    他在一位坚强勇猛的首领保护下生活。

10. He said that someone might be spying on the station and the pilot was ordered to keep track of the strange object.
    他说可能有人正对基地进行侦察，因此命令那个飞行员跟踪那个奇怪的飞行物。

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