Heptoxide
[建] 七氧化物
🗣️ 情景例句
We're going to play charades.
我们来玩哑谜。
You be the judge.
你来评评理。
An Indian came into the waiting room, and walked quickly to the doctor's door.
一个印度人走进候诊室，快步朝医生的门口走去。