Polydienes
(polydiene 的复数) 聚二烯
🗣️ 情景例句
Right.
对。
All is not gain that is put in the purse.
放入钱包的钱财，并非都是应得的。
Thank you very much. I'll return it as soon as I can.
非常感谢。我会尽快归还的。