Orthochem
[地化]原生化学沉积
🗣️ 情景例句
I wish I could go there with you, Grandpa.
我真希望我能够跟你一起去， 爷爷。
The sanitary engineer collects garbage.
卫生队员收集垃圾。
Come in and have a seat.
请进来坐。