Chain substitution
[化] 链上取代
🧩 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;
substitution
[ˌsʌbsti'tju:ʃən]
n. 代替;代用;替换;<化>取代（作用）;
🗣️ 情景例句
No. Will you also initial this change on page 2, please?
不，请你也在第二页变更处签姓名的一个字母好吗？
The day is long to him who knows not how to use it.
百无聊赖。
Boxing matches were very popular in England two hundred years ago.
两百年前，拳击比赛在英国非常盛行。