Alcoxide
烃氧基金属
🗣️ 情景例句
Well, here's a twenty.
嗯 ，这是二十美元。
A plant may produce new flowers; man is young but once.
花有重开日，人无再少年。
I think the shop is closed at this time of day.
我想商店在这个时间已经关门了。