Polyflon
聚四氟乙烯树脂(商品名)
🗣️ 情景例句
Who are you rooming with?
你和谁同屋？
Did you clean this yourself?
你自己亲自清理这个？
yet following her regular practice she had shut them before going out.
而她记得在出门买东西前，她按老规矩是把房门一一锁上的。