Nitroanthracene
[化] 硝基蒽
🗣️ 情景例句
I'm afraid it just isn't good enough.
恐怕这不够好。
Did you go to the movies last night?
你昨晚去看电影了吗？
A young English writer made the pertinent observation a year or two back
一两年前，一位年轻的英国作家发表了中肯的看法。