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
In any case, you should prepare for the worst.
无论如何你要做好最坏的打算。
I'm feeling under the weather.
我觉得不舒服。
Yes, of course. It's very easy.
那当然。煮它（豆腐）并不难。