Polyfluoroethylene
聚氟乙烯
🗣️ 情景例句
I'd like to order a hamburger and fries.
来个汉堡包和薯条吧。
Put the cart before the horse.
本末倒置。
Can you recognize that woman，Mary?
你能认出那个女人是谁了吗，玛丽？