Boundary operator
[计] 边缘算子
🧩 词语组成解析
🗣️ 情景例句
and giving up your free time.
放弃了你的闲暇时间。
I'm going to show him how to swim.
我正要指点他如何游泳。
She understood what I was talking about, even though it was the first time we had spoken together.
她理解我的话，虽然我们是第一次在一起说话。