Chloration
氯化作用
🗣️ 情景例句
I have to think about it.
我得想一想。
To be killed
被杀
When a light passenger plane flew off course some time ago, it crashed in the mountains and its pilot was killed.
不久前，一架轻型客机偏离了航线，在山区坠毁，飞行员丧生。