Perfluamine
全氟三丙烷
🗣️ 情景例句
Yes. It's a great way to really see the canyon.
真的。那是真正参观峡谷的好方式。
It is an equal failing to trust everybody, and to trust nobody.
信任一切与不信任任何人，同样是弱点。
Since its discovery, it has become a sort of potholers' Everest.
自从被发现以后，这个洞成了洞穴探险者的珠穆朗玛峰，