??? 情景例句
Twenty-one inches.
二十一英尺。
I have a complaint.
我要投訴。
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,
第一點，腦電圖記錄儀（不過是一種把電極接到頭皮上記錄腦電活動的儀器）顯示，人在睡眠時大腦活動的方式有變化，