Backbone chain
[化] 主链
🧩 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
Yes.
能。
He that knows not how to hold his tongue knows not how to talk.
不知缄口的不善言。
Their interest is listening to others.
他们的兴趣是听别人说话。