Tetrahydropteridine
[化] 四氢蝶啶
🗣️ 情景例句
Sit down, Robbie. Let's get to work.
坐下来 ，Robbie， 让我们开始做功课吧。
Many good cows have evil calves.
很多好母牛，会生坏小犊。
I sat down at the breakfast table in an exhausted condition.
然后坐到桌边吃早饭，一副筋疲力尽的样子。