Dibromopyrogallolsulfonaphthalene
(DBPSN)二溴代焦酚磺萘
🗣️ 情景例句
We have two and a half hours.
还有两个半小时。
I played upstairs yesterday.
我昨天在楼上玩。
I don't know what you're talking about.
我不知道您在说些什么。