Elbs reaction
[化] 埃尔布斯反应; 合成蒽
🧩 词语组成解析
🗣️ 情景例句
I'm afraid i've brought you a lot of trouble.
恐怕我给你带来了不少麻烦。
I don't think that's at all funny.
我觉得那件事一点也不好笑。
What are you doing?
你在干什么？