Difluoroethylene
二氟乙烯
??? 情景例句
Easy now. Easy does it. That's it.
放輕 ，不要緊 ，對了。
Yes, I have got the license from the Bank of China. Here you are.
是的，我已得到中國銀行的許可。請過目。
Love me，love my dog.
（諺語）愛屋及烏。