Polydienes
(polydiene 的复数) 聚二烯
🗣️ 情景例句
And I'll call Mr. Riley at the bank
我打电话到银行给Riley先生
I will be going to school in September.
我将在九月份上学。
I have just received a letter from my brother, Tim.
我刚刚收到弟弟蒂姆的来信，