Polythiourea
聚硫脲
🗣️ 情景例句
All right, but I'm buying next time.
好吧，不过下回我付钱。
They've already turned on the electricity.The house is ready.
他们已经开了电.房子是准备好了的。
'So do I,' answered the policeman in the same tone.
“我也是的，”警察用同样的声调回答，