Polysulfonate
多磺酸盐
🗣️ 情景例句
Have a good time.
好好玩。
I could not catch your question. Could you repeat it, please?
我没听清楚你们的问题，你能重复一次吗？
I'll go and look after the man, she said.
“我去照料那个人”，她说。