Subdifferential
次微分
🗣️ 情景例句
Some people don't mind being alone. I do.
有些人不在乎独自生活。 我在乎。
Thank you for a wonderful meal.
谢谢你的美餐。
Eventually chains were fixed to one end of the dish and a powerful winch was put into operation.
不过，他们终于将链条固定在盘子的一端，一台大功率的绞车开动起来。