Subgradient
次梯度
🗣️ 情景例句
I'm almost ready here.
我快要准备就绪了。
From across the room, David cast a glance at his brother.
隔着房间，大卫瞥了一下弟弟。
Textile business has become more and more difficult since the competition grew.
随着竞争的加剧，纺织品贸易越来越难做了。