Polydienes
(polydiene 的复数) 聚二烯
🗣️ 情景例句
How did you feel?
感觉怎么样？
All men cannot be first.
不可能人人都得第一名。
'I've just arrived by train,' she said.'I'm coming to see you.
“我刚下火车，”她说，“我这就来看你。