Boundary chain
[计] 边界链
🧩 词语组成解析
chain
[tʃen]
n. 链子，链条;连锁，连续;拘束;连锁店或旅馆系列的事物;
vt. 用铁链锁住;监禁，束缚;
🗣️ 情景例句
What floor is the shoe department on?
鞋部在几层？
They could not agree about the distribution of the profits.
他们对于利润的分配意见不一致。
Yes, there is one.
是的，有一个。