Eptfe
abbr. expanded polytetrafluoroethylene 多孔（泡沫）聚四氟乙烯
🗣️ 情景例句
What number do I dial?
我应该拨哪个号码呢？
Button holes are very hard to sew.
要缝钮扣洞非常难。
When work continued, one man lit a cigarette as he was working, but, finding it had a strange taste, he put it out.
随后他们继续干活，一个工人在干活时点燃了一支香烟。可是他觉得有一股怪味，他就把烟灭了。