Eptfe
abbr. expanded polytetrafluoroethylene 多孔（泡沫）聚四氟乙烯
🗣️ 情景例句
I've seen pictures of him.
我见过他的照片。
How do you spend your leisure time?
你怎样打发业余时间？
It was a great help to me.
真是获益良多