Fluorochemicals
含氟化合物
??? 情景例句
Drop the gun, or I'll shoot.
扔掉槍， 不然我就開火了。
We feel your product is too specialized for mass marketing.
我們認為你們的產品對廣大市場而言太專業化了。
Oh, that's Mrs. Brown.
噢，那是布郎太太。