Pyrimidine
n. 嘧啶\\n[化] 嘧啶
🗣️ 情景例句
He has no command over himself.
他不能克制自己。
I'm a new employee.I was hired yesterday.
我是昨天被雇用的新雇员。
How did the bees know exactly in which diection to fly?
蜜蜂是怎样确切地知道朝哪个方向飞呢？