Ring fluorination
[化] 环上氟代作用
🧩 词语组成解析
ring
[riŋ]
n. 戒指，指环;铃声，钟声;环形物;拳击场;
vt. 形成环状;环绕;使（例如铃）响;打电话给;
vi. 按铃，敲钟;回响;成环形;
n. 氟化作用
🗣️ 情景例句
Is that a proposal, or are we just playing a game?
这是求婚呢 ，还是仅仅在玩游戏？
An ass endures his burden,but not more than his burden.
驴子能负重，过重也难负。
Happy birthday! he said. Here's your present.
“生日快乐！”他说，“这是给你的礼物。”