Peroxyacetyl
nitrate [化]硝酸过氧化乙酰
🗣️ 情景例句
Thank you.
谢谢你 。
A courageous foe is better than a cowardly friend.
勇敢的敌人胜过懦怯的朋友。
People often ask me whether I like being a twin.
人们常常问我是不是喜欢双胞胎。