Tenside
表面活性剂
🗣️ 情景例句
Sometimes there is,
有时候有，
This is Shen calling.
我姓沈。
I hope not. She says she's got a headache and a cough. Perhaps she's caught a cold.
我也但愿如此。她说有点头痛，还咳嗽。也许是感冒了。