Chronic altitude sickness
[医] 慢性高空病
🧩 词语组成解析
🗣️ 情景例句
We will help your children in learning lessons in their free time.
我们可以帮助您的孩子在他们空闲时学习功课。
To pay a person in his own way.
以其人之道还治其人之身。
and a period (which is the time it takes a wave crest to travel one wave length).
和周期（浪峰走过一个波长所需的时间）。