Tetrasilicate
四硅酸盐
🗣️ 情景例句
It's good that you went back.
你回去是对的。
Pupil. He is studying.
学生。正在学习。
Then the woman simply took the parcel and walked out of the shop without paying.
然后，那妇女拿过包就走出了商场，根本没有付钱。