Polythiourea
聚硫脲
🗣️ 情景例句
Well, I guess we all have to take our mind off work once in a while.
对，我们都应该忙里偷闲。
A good example is the best sermon.
身教胜似言教。
Let's go out and celebrate.
我们到外面庆祝一下吧