Polydiene
聚二烯
🗣️ 情景例句
Can you spot me a 20?
你能借我二十元吗？
His hand is swollen, Does it hurt?
他的手肿起来了，疼不疼？
No, I think it'll be all right for him to go to school.
不，我想他去上学没什么关系。