Perfluorocarbon
全氟化碳
🗣️ 情景例句
It's well worth the time.
这很值得花时间。
It is a silly goose that comes to the fox's sermon.
只有呆鹅才去听狐狸说教。
I've got a pain here. Just here. Ouch!
我这儿痛。就这儿。哎哟！