Malonamic acid
[化] 丙酰胺酸
🧩 词语组成解析
🗣️ 情景例句
Is room service available?
有房间服务吗？
The world is a ladder for some to go up and some down.
人间犹如一架梯，有人缘梯上升，有人顺梯下降。
It kept repeating the steps over and over.
蜜蜂一而再，再而三地重复它的"舞步。