Polyfluoroprene
聚氟丁二烯
🗣️ 情景例句
I've never heard such a pile of crap in my life!
我这辈子从来没听过如此胡说八道！
Don't forget to print airmail on the letter.
不要忘记在信封上印上航空邮件
A gust of wind swept the bed off the roof and sent it crashing into the courtyard below.
一阵大风把床从屋顶上刮了下来，把它摔碎在下面的院子里。