Ketonic acid
[化] 酮酸(RCOCOOH)\\n[医] 酮酸
🧩 词语组成解析
酮的
🗣️ 情景例句
I'm sorry, Alexandra.
我为你难过 Alexandra。
After dinner sit awhile,after supper walk a mile.
正餐以后，休息片刻；晚餐以后，步行一哩。
First the electroencephalograph (which is simply a device for recording the electrical activity of the brain by attaching electrodes to the scalp) shows that while there is a change in the pattern of activity during sleep,
第一点，脑电图记录仪（不过是一种把电极接到头皮上记录脑电活动的仪器）显示，人在睡眠时大脑活动的方式有变化，