Nigrotic acid
[化] 黑酸; 3,6-二羟-2-磺基-7-萘甲酸
🧩 词语组成解析
🗣️ 情景例句
The security guard asked the stranger for some I.D.
保安要求陌生人出示身份证。
I would like to talk to your chief.
我想请你们主管讲话。
Yes, please do that.
好，那就麻烦你了。