Hydrogen bond
[化] 氢键\\n[医] 氢键
🧩 词语组成解析
🗣️ 情景例句
I have three tonsillectomies set for Friday with Dr. Earl.
我安排好要和Earl大夫在星期五进行三个扁桃腺切除手术。
Then, all of a sudden, it became cloudy and began to rain.
可是突然天就变了，乌云密布并下起雨来。
In this much-travelled world, there are still thousands of places which are inaccessible to tourists.
在这个旅游频繁的世界上，仍有成千上万个游人足迹未至的地方。