Hydroxyazobenzene
羟基偶氮苯
🗣️ 情景例句
About eight o'clock?
差不多八点钟好吗？
John had a rough time last night.
约翰昨晚好像挺轰轰烈烈的样子。
She looked everywhere for him but could not find him.
四处寻找，但没有找着。