Perhydrocyclopentanophenanthrene
环戊烷多氢菲
🗣️ 情景例句
There is an emergency. Please send a fire engine.
这有火灾，请尽快派消防车来。
I remember the girl whose father goes there every winter.
我记得那个女孩的父亲每年冬天都去那里。
We've got plenty of time. We needn't hurry.
我们有大把时间，不急。