Boundary problem
[计] 边界问题
🧩 词语组成解析
🗣️ 情景例句
What's your mother's occupation?
你妈妈的职业是什么？
You're not worth my time.
我才懒得理你。
There is a new type of machine which can produce colour copies.
有一种新型的机器能够制作出彩色复印件。