Dihydrofolic acid
[化] 二氢叶酸
🧩 词语组成解析
🗣️ 情景例句
He doesn't have any family with him.
他没有家人和他在一起。
Young man may die but old men must die.
年轻人可能会死，老年人难免不亡。
He saved money for years and in 1958 he bought a small workshop of his own.
他靠多年积蓄，于1958年买下了自己的一个小铺子。