Opalon
[化] 氯乙烯树脂及其化合物的商品名
🗣️ 情景例句
It's nice to see you again.
很高兴再见到你们。
Who would you like to invite to the party?
你要邀请谁来宴会？
Whose is this shirt? Is this yours, Li Lei?
这是谁的衬衫？是你的吗？李磊？