Hexafluoropropylene
[化] 六氟丙烯
🗣️ 情景例句
For some reason, I couldn't get a handle on it.
因为某些原因， 我就是开不了窍。
How's your nephew?
你的女儿好吗？
They help their parents to open their stockings, too.
他们还帮助父母打开他们的袜子。