Menthanone
[化] ┮烷酮
🗣️ 情景例句
What kind of guarantee do you offer?
这种车有售后服务保证吗？
They've been married for quite a few years.
他们结婚好多年了。
Although we can't see these atoms, they really do exist.
虽然我们看不见原子，但它们的确存在。