Dinitroresorcin
[医] 二硝基间苯二酚, 二硝基二羟苯
🗣️ 情景例句
the plans for the community center
这项修建社区中心的计划
Sadness and gladness succeed each other.
悲喜互继，哀乐相续。
I'm afraid he's out at the moment. He's at the cinema. Can I take a message?
恐怕他这会儿不在家。他在电影院。我可以给你捎个信儿吗？