Polytef
[化] 聚四氟乙烯
🗣️ 情景例句
You mean from the food?
是不是吃东西引起的？
This kind of box is not suitable for the transport of the tea sets by sea.
这种箱子不适合装茶具海运。
Many people think that Canadians all over the country speak the same way.
许多人认为加拿大全国人的说法都相同。