N-nonanoic acid
[建] 壬酸
🧩 词语组成解析
🗣️ 情景例句
Good night.
晚安。
In universities,students train to become teachers and engineers.
在大学里，学生们被训练成为教师和工程师。
I told her what the revolutionaries were doing and I persuaded her to help me.
我告诉她革命者都在干些什么事，并说服她给我帮忙。