Fluorochemical
[机] 氟化物
🗣️ 情景例句
We have a wide connection in U.S.A.
我们在美国各地有广泛业务关系。
The more a man knows, the more he is inclined to be modest.
大智若愚。
I counted seven old cars and three old refrigerators.
我数了一下，有7辆旧汽车和3上旧冰箱。