Vinylic
[有化] 乙烯的
??? 情景例句
Well, Grandpa wanted me to study engineering, like him.
嗯 ，爺爺希望我像他一樣學工程。
None but a wise man can employ leisure well.
唯智者善于利用空閑。
I understand you want to increase your order.
我知道你想增加訂購量。