Piperazinedione
[化] 哌嗪二酮
🗣️ 情景例句
Television is the most powerful tool of persuasion that man has ever created.
电视是人类所创造的最有威力的游说工具。
Have you ever been to Japan?
你去过日本吗？
The basic features include a crest (the highest point of the wave),
它们的基本特征包括浪峰（波浪的最高点）