Ptfe
abbr. 聚四氟乙烯（Polytetrafluoroethylene）
🗣️ 情景例句
A 20% discount will be given when you shop at Makro.
你在万客隆买东西会有20%的折扣。
It's been a bad day.
今天糟透了。
I often watch TV, but sometimes I read.
我经常看电视，有时看书。