Acetacetic acid
[化] 乙酰乙酸
🧩 词语组成解析
🗣️ 情景例句
Have you gotten over your cold?
你感冒好了吗？
The frog in well knows nothing of the great ocean.
井底之蛙不知汪洋大海。
It is fairly clear that sleeping period must have some function,
很清楚，睡眠必然具有某种作用。