Perimidinyl
啶基, 萘嵌间二氮(杂)苯基
🗣️ 情景例句
about five years ago.
大约五年前。
I'd like to have you come to my house for dinner sometime.
改天请到我家来吃饭。
I'm fine, thanks. And you?
我很好，谢谢。你呢？