1. Some specimen of moon rocks were brought back.
    一些月球的标本被带了回来.

2. Such a messenger, receiving our radio and television signals, might well re-transmit them back to its home-planet,
    这种自动化信息装置，在接收到我们的无线电和电视信号后，完全有可能把这些信号发回到原来的行星。

3. So I drove back to the town and began to retrace the route, taking frequent glances at the map.
    于是我驾车返回小镇，重新按路线行驶。

4. Sad, I packed up my books and walked slowly back to my room.
    我感到难受, 收拾了书本就慢慢地朝我的房间走去。

5. Suddenly the man behind fell over a stone, hurt his foot badly and called: "Hey, Bill, I've hurt my foot." Bill continued without looking back.
    突然，后面一个人被一块石头绊倒了，脚受了重伤。他喊道："嗨，比尔，我的脚弄伤了。"比尔头也不回，继续朝前走了。

6. Since most people do not feel comfortable when they think they are being judged, this leaning-back position serves to prevent the speaker from continuing.
    由于大多数人想到自己正受到他人评判会感到不舒服，因此这种身体后倾的姿势容易阻止说话者继续说下去。

7. She still lives 16 kilometres from where she grew up, has many friends dating back to school years, and moved from a large house to a smaller one because, she explains, her family didn't use all the space in the old place.
    她仍住在离自己的出生地16公里远的地方，依然拥有很多学生时代的旧友。她还从一栋大房子搬到一栋小房子中居住，她解释说，那是因为他们一家利用不了老房子里的所有空间。

8. She looked into every corner in search of unreported appliances, or maids, or a roast pig in the oven, or a new helicopter parked out back.
    她寻遍每个角落，想找出我未上报的电器，或者是女仆、烤炉里的烤猪、停在房后新买的直升飞机什么的。

9. Saving the public from cheats and criminals has been an effective excuse for cutting back everyone's personal privacy.
    保护公众不受欺骗和侵害一直是降低个人隐私程度的有效借口。

10. Stupid and dangerous as it seems looking back, I went into my marriage at the age of 25 without being in love.
    现在回忆起来似乎是有些愚蠢、危险，但我当时真的是在25岁时，未经恋爱就结婚了。