Sah
[医][=s-adenosyl-l-homocysteine]s-腺苷-l-高半胱氨酸
🗣️ 情景例句
What's the difference between A and B?
A和B有什么不同？
A smooth sea never made a skillful mariner.
平静的海洋练不出熟练的水手。
As the parents had five children, life was a perpetual struggle against poverty.
家里已有5个孩子，全家人常年在贫困中挣扎。