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
I consider him my best friend.
我将他视为我最好的朋友。
I'll keep that in mind.
我会记住的。
One morning the tiger was very, very hungry.
一天早上老虎饿极了。