Oxamide
草酰胺, 乙二酰二胺
🗣️ 情景例句
I appreciate your help very much.
我非常感激你的帮助。
Life is a comedy to him who thinks and a tragedy to him who feels.
对善思考者，人生为喜剧；对凭感觉者，人生为悲剧。
We have this item in three price levels.
此一品目，我们分三种等级的价格。