Ring ketone
[化] 环酮
🧩 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;
ketone
['ki:toʊn]
n. 酮;
🗣️ 情景例句
Then you have to fill out this form
然后你要填写这份表格，
The fear of ill exceeds the ills we fear.
杞人忧天，庸人自扰。
The IBM Personal Computer was widely copied.
IBM的个人电脑被大规模地模仿。