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
Do you have any questions in mind about them, Mr. Martin?
你还有什么问题吗，马丁先生？
He that will eat the nut must first crack the shell.
欲所得，必先劳。
Often, we help them with the harvest.
我们经常帮助他们收割。