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
We are going upstairs to set up Grandpa's room.
我们要上楼收拾一下爷爷的房间。
Someone is using the phone.
有人在用电话。
So far, no man has travelled farther than the moon, but spaceships without people have reach other parts of the universe.
到目前为止，尚未有人到过比月球更远的地方，但无人驾驶的宇宙飞船已到达过宇宙的其它地方。