Polyflon
聚四氟乙烯树脂(商品名)
🗣️ 情景例句
A friend in need is a friend indeed.
患难朋友才是真正的朋友。
If I buy that car, I'll have to use all my savings.
如果我要买那辆车的话，我必须用尽我的积蓄。
What's the time?
几点了？