Dihydrofolic acid
[化] 二氢叶酸
🧩 词语组成解析
🗣️ 情景例句
I like the Molinas very much,
我很喜欢Molinas一家人。
A thousand friends are few, one enemy is too many.
朋友千人尚觉少，仇敌一人犹嫌多。
In 1929, three years after his flight over the North Pole, the American explorer, R.E.Byrd, successfully flew over the South Pole for the first time.
美国探险家 R。伯德在飞越北极3年之后，于1929年第一次飞越了南极。