Boundary operator
[计] 边缘算子
🧩 词语组成解析
🗣️ 情景例句
Keep trying! don't give up the ship.
继续努力！ 别轻易放弃！
Meat is almost more precious than money!
肉贵得买不起了。
It took me ten minutes to persuade her to ring back later.
我用了10分钟的时间才说服她过会儿再来电话。