Peroxyacetyl
nitrate [化]硝酸过氧化乙酰
🗣️ 情景例句
I'm famished.
我饿死了！
The moon is a moon whether it shines or not.
或名或暗，月亮总是月亮。
I usually come by bus. What about you?
我平常乘公共汽车。你呢？