Poly(vinyl fluoride)
[化] 聚氟乙烯
🗣️ 情景例句
Thank you, sir.
谢谢您，先生。
A little body often harbours a great soul.
莫道身躯小，伟人寓其间。
one, to my certain knowledge, spent nine months on a novel about Kashmir,
据我所知，有位作家花了9个月的时间写了一部有关克什米尔的小说，