Chalcogen
n. [化]硫族元素,氧属元素(包括氧、硫、硒等)
🔁 扩展释义
【化】 硫属元素; 氧族元素
🗣️ 情景例句
Thank you.
谢谢。
The world is a ladder for some to go up and others to go down.
世界好似一把梯，有人上去有人下。
It was obvious that he was very embarrassed.
显然他感到很尴尬。