1. as big as 与……一样大

3. one of the oldest countries最古老的国家之一

5. feel free to do sth. 随意地做某事

7. as far as I know 据我所知

9. any other mountain 其他任何一座山

11. of all the salt lakes 在所有的咸水湖中

13. run along 延伸；贯穿

15. freezing weather conditions严寒的天气状况

17. fall over 摔倒

19. walk into sb. 撞到某人

21. every two years 每两年；每隔一年

2. take in air 呼吸空气

4. in the face of difficulties 面临危险

6. give up doing sth. 放弃做某事

8. achieve ones dream 实现某人的梦想 10. the force of nature 自然界的力量

12. even though 虽然；尽管

14. at birth 在出生的时候

16. be awake 醒着

18. run over with excitement 兴奋地跑过去

20. endangered animals 濒危动物

22. be in danger 处于危险之中

1. It is also very hard to take in air as you get near the top.

当你接近山顶时，连呼吸都会困难。

2. One of the main reasons is because people

want to challenge themselves in the face of difficulties.

其中一個主要的原因是人们想要在面临困难时挑战自己。

3. The spirit of these climbers shows us that we should never give up trying to achieve our dreams.

这些登山者的精神向我们证明：为了实现我们的梦想，我们永远都不应该放弃尝试。

4. Adult pandas spend more than 12 hours a day eating about 10 kilos of bamboo.

成年大熊猫一天要花12 个多小时的时间吃大约10千克的竹子。