| 释义 |
hemispheres
释义
n. [天]半球（hemisphere 的复数形式）
考试频率
四级
六级
考频：近五年出现3次
n. 半球
例句
1·The brain hemispheres take turns sinking into the sleep stage characterized by slow brain waves.
大脑半球轮流进入以慢脑波为特征的睡眠阶段。
2·They are subject to climatic occurrences such as weather systems, which impact upon hemispheres as a whole, and from continent to continent.
它们受到气候变化事件的影响，例如天气系统能影响整个半球和各大洲都有影响。
3·Birds also can sleep with both hemispheres resting at once.
鸟类也可以在左右半脑同时休息的情况下睡觉。
短语
1·northern hemisphere
北半球
2·southern hemisphere
南半球
3·western hemisphere
西半球
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