P-bromoacetanilide
[化] 对溴乙酰苯胺
🧩 词语组成解析
[化] N-乙酰溴苯胺
🗣️ 情景例句
A couple of weeks.
两、三个星期吧。
The remembrance of past sorrow is joyful.
记住过去的不幸使人愉快。
the writer comes to discern things in his material which were not consciously in his mind when he began.
会领悟到素材中很多东西是他刚动笔时所未意识到的。