Diacetanilide
[化] N,N-二乙酰苯胺
🗣️ 情景例句
Why were you out of work for so long?
你为何这么久没有工作？
In secondary school, children get more advanced knowledge.
中学的小孩会得到进一步的知识。
Twenty or thirty pages of information handed to any of the major world powers around the year 1925 would have been sufficient to change the course of world history.
如果把二三十页的情报交给1952年前后的任何一个世界强国，就足以改变世界历史的进程。