Graebe-ulmann carbazole synthesis
[化] 格雷伯-乌尔曼咔唑合成法
🧩 词语组成解析
n. [化]咔唑
🗣️ 情景例句
He gives his harness bells a shake
摇动， 绳上的铃铛
You can't stay in bed, darling!
亲爱的，你不能老呆在床上呀。
Yes, it is.
是啊！