Olefine ketone
[化] 烯酮
🧩 词语组成解析
[化] 烯烃; 链烯烃
ketone
['ki:toʊn]
n. 酮;
🗣️ 情景例句
May I ask how Mr. Mrs- is?
-先生（小姐）好吗？
Don't you get it?
你懂不懂啊？
If it is not a question of resting the body, then perhaps it is the brain that needs resting? This might be a plausible hypothesis were it not for two factors.
如果睡眠的功能不是在于使身体得到休息，那么也许是让大脑得以休息？若不是下面两点，这种假使似乎是有道理的。