water hemisphere水半球
cerebellar hemisphere[解剖]小脑半球
right hemisphere右半球 ; 大脑右半球 ; 而大脑右半球 ; 右脑半球[1]
It is further divided into four regions, or lobes, in each hemisphere.
每个半球它又进一步分化为四个区域或四个脑叶。
This is because as Earth turns, air is pulled to the right in the northern hemisphere.
这是因为地球旋转时，在北半球，空气向右流动，在南半球，空气则向左。
They also do not know why the extra brain activity, at least during the first phase of deep sleep, is always on the left hemisphere.
他们也不知道为什么这额外的大脑活动总是发生在大脑左半球，至少第一晚的深睡眠阶段是如此。[1]