Acetylizer
乙酰化器
🗣️ 情景例句
Millie, did you bring the tapes for dancing?
Millie，带来了跳舞的录音带吗？
We've only sold our product at trade fairs, not in an on-going sales campaign.
我们的产品只在商展时展售，而没有办促销活动。
They have nothing to eat.
他们没有东西吃。