1·Climbing mountains is tiring.
爬山是很累人的。
2·Climbing mountains is interesting.
爬山很有趣。
3·I hurt it while I was climbing mountains.
我爬山的时候弄伤了它。
4·My dad has always spent his free time climbing mountains.
我爸爸总是在空闲时间去爬山。
5·His love for mountain climbing was so great that he kept on climbing mountains even after this experience.
他是如此热爱登山，即使在这次经历之后，他仍然坚持爬山。
6·As Alan Arnette, a mountain climber from America, said "Climbing mountains drives you to look deep inside yourself, and lets you find out whether you are healthy enough and strong enough in mind when you want to stop."
正如美国登山家阿兰·阿奈特所说：“爬山会让你审视自己的内心深处，当你想停下来的时候，你会发现自己的内心是否足够健康和强大。”
7·Even after this experience, he kept on climbing mountains.
即使有了这次经历，他还是继续爬山。
8·Did Aron keep on climbing mountains after the serious accident?
那场严重事故发生之后，阿伦还在继续爬山吗？
9·Her husband went climbing mountains last weekend. It gave her the collywobbles even to think about it.
她丈夫上周末去爬山了。一想到这事，她就会感到不安。
10·California People do many things that cause injury to themselves but are not illegal, such as climbing mountains, driving cars, swimming and so on.
加利福尼亚人会做很多伤害自己但并不违法的事情，比如爬山，开车，游泳等等。