Nilradical
[数]幂零根基
🗣️ 情景例句
John proposed marriage to Helen.
绚翰向沦论求婚。
There is nothing either good or bad, but thinking makes it so.
事情本无好与坏，全在自己怎么想。
Nice meeting you. Bye-bye.
见到你（也）很高兴。再见。