Polyfluoroprene
聚氟丁二烯
🗣️ 情景例句
Get it?
明白吗？
Sure. Should I check your radiator?
好的。要不要检查一下散热器？
' I looked down and nearly fell off the ladder when I saw a policeman.
”我向下面看去。当我看清是一个警察时，差一点儿从梯子上掉下去。