Naphthoquinaldine
萘喹哪啶, 甲基氮菲
🗣️ 情景例句
He is behind the rest of the class in reading.
他在阅读方面不如班上的其他同学。
What do you want to do after graduation?
你毕业后想干什么？
A bad workman quarrels with his tools.
手艺差的工人总是抱怨工具不好使。