Dinitrodiazophenol
二硝基重氮酚
🗣️ 情景例句
He never speaks unless he is spoken to.
除非别人先对他开口，他从不先开口。
One boy is more trouble than a dozen girls.
一个男孩比十二个女孩还要麻烦。
Oh, I usually come by bus too.
噢，我也常乘公共汽车。