Mononitrate
一硝酸盐
🗣️ 情景例句
During your computer classes, did they teach you how to fix a cooling fan?
在你的电脑课程，他们是否教过你如何修理散热风扇？
What is happening out there?
外面发生什么事情？
It usually comes in February or March. Summer is often very hot.
通常在2月或3月开始。夏天很热。