Dinitration
二硝化作用
🗣️ 情景例句
to meet the rest of the troop at two o'clock at the museum.
我们得在两点钟到博物馆与其他童子军会合。
She is supposed to be one of the best singers.
大家认为她是最有名气的歌星。
You're welcome.
不用谢。