Nilpotency
幂零性
🗣️ 情景例句
Oh, yeah?
噢 ，做什么？
The timid child would not leave his mother's side.
那个胆小的孩子不愿离开母亲。
Yes, thank you. I've had a wonderful time.
是的，谢谢你。我过得愉快极了。