Chain fluorination
[建] 链上氟化
🧩 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;
n. 氟化作用
🗣️ 情景例句
The bad news hit everyone hard.
恶耗使每个人都受到了沉重打击。
She always feels comfortable when surrounded by her family.
她被家人围绕时，常感到快慰。
There was a notice in the supermarket.
超市里有一个布告。