Polyfluoroprene
聚氟丁二烯
??? 情景例句
Their relationship is over.
他們之間的關系完了。
Sorry, but I have to go. Peace!
對不起，我必須走了，祝無恙！
American country music. He writes most of his songs himself.
美國鄉村音樂。他演唱的歌曲，多數是由他自己寫的。