Diazouracil
重氮尿嘧啶
🗣️ 情景例句
I'm happy to meet you.
很高兴见到你。
I invited him to come back, but he wouldn't.
我请他回来，但是他不肯。
It was necessary, therefore, to invent instruments that neither slumbered nor slept.
因此，有必要发明一种仪器，既不打盹儿，也不睡觉。