Carboxide
n. 羰基\\n[化] 环氧乙烷二氧化碳1
🗣️ 情景例句
And I'll bet
我敢打赌
When did I say that?
我什么时候说过了？
Look! It's inside another pot. What was that pot used for?
“瞧！还是大壶套小壶呢。有什么用途？”