Perfluoroethylene
[机] 四氟乙烯
🗣️ 情景例句
Then, Harry Bennett, do you take Susan Stewart
那么 ，Harry Bennett， 你愿意接受Susan Stewart
This award means a great deal to me.
这个奖对我意味深长。
Good morning. Can I help you?
早上好！我能帮您什么忙吗？