Biozeolite
生物沸石
🗣️ 情景例句
What do you think of the terms of payment?
关于付款条件你们有什么意见？
I'll call the roll before class.
课前我要点名。
The Y.H.A., Mum.The Youth Hostels Association.
“青招协”，妈妈。青年招待所协会。