Heptanone
n. [化]庚酮
🗣️ 情景例句
My eyesight sucks.
我的视力非常差。
What's your nationality?Are you a French?
你的国籍是什么？你是法国人？
Here are the two originals of the contract we prepared.
这是我们准备好的两份合同正本。