太空旅游的利：

　　1提供人类居住的新场所，

　　2给人类提供新能源，

　　3帮助人们更好的了解宇宙，

　　4太空研究对其他领域有好处

　　镗孔旅游的弊：

　　1花费太大，

　　人类住在其他行星上的想法不切实际，

　　3太空旅游有危险!

　　Travel

　　A succession of beautiful scenery makes one feel delighted. A long stay in the same surroundings to make everything the same. Routine work often makes one feel bored But if you take a trip or a long journey on your holidays to some scenic spots or historic sites, that will make great difference.

　　Travel can widen one’s knowledge. The farther you go, the more you will learn about different politics, economics, customs as well as geography. If you travel the whole world some day, you will fully understand the globe on which we live.

　　However, too much travel causes tiredness. You get on a bus or a taxi, you travel on the train or in a plane, being patient with the hours needed on your mute from one place to another, that will make you exhausted after a while.
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