Bemaglite
铍镁晶石
🗣️ 情景例句
This is as useful as screen door on a submarine.
这毫无用处。
I know the boy whose father is a dentist.
我知道那个男孩的父亲是牙医。
The last order didn't work out too well for us.
上回订的货用起来不怎么顺。