Boundary relation
[化] 边值关系
🧩 词语组成解析
🗣️ 情景例句
Well, I'd better be on my way.
好啦，我该走了呢。
I will go to the airport.
我将去飞机场。
Last summer I spent days in the garden watching thousands of ants crawling up the trunk of my prize peach tree.
去年夏天，我花了好几天时间站在花园里观察成千只蚂蚁爬上我那棵心爱的桃树的树干。