Acetylenic ketone
[机] 炔(属)酮
🧩 词语组成解析
[机] 炔的
ketone
['ki:toʊn]
n. 酮;
🗣️ 情景例句
No thanks. Maybe some other time.
不用了，谢谢。也许下次吧。
Which foot hurts?Is it the left one?
哪个脚受伤?是左脚？
For most of the earth's history they have been the only form of life on our planet.
在地球上发展的大部分进程中，细菌是地球上唯一的生命形式。