Perfluoroethylene
[机] 四氟乙烯
🗣️ 情景例句
Chablis is fine.
好的。
Wisdom is to the mind what health is to the body.
知识之于心灵，犹如健康之于身体。
Then we'd have some ideas of what you'll be needing
那么我们就会心中有点儿数，知道你们需要什么了。