Polytetrafluoroethylene
n. [高分子] 聚四氟乙烯
🗣️ 情景例句
I used to stop for hitch-hikers'till the day I picked up that maniac.
自从有一天搭了一个精神病人以后，我碰到搭顺风车的人就不再停下来了。
How fierce can a lion be without his teeth?
没有牙的是狮子也可怕吗？
A navy ship was in a port in Scotland for repairs.
一艘军舰停靠在苏格兰的一个码头等待维修。