Beta-acetylpropionic acid
[医] β-乙酰丙酸, 块茎糖酸
🧩 词语组成解析
n. 希腊字母表的第二个字母\\n[医] β(希腊文的第二个字母), 乙种
🗣️ 情景例句
I was so tired
我太累了
Poverty is apain, but no disgrace.
贫困是痛苦，但不是耻辱。
But the historian attempting to reconstruct the distant past is always faced with a difficult task.
但是，历史学家企图重现遥远的过去可是一项艰巨的任务，