Polytetrafluoroethylene
n. [高分子] 聚四氟乙烯
🗣️ 情景例句
I was deeply impressed by his speech.
他的演讲给我留下深刻的印象。
He has never been out of China, so he is very excited about liveing abroad.
他以前从未出过国，因此对出国很兴奋。
You need to wear lots of warm clothes.
人们要穿很多的保暖的衣服。