名词
中文翻译：半边
同义词：
['semi-', 'semi-', 'half']
例句：
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1. Hemispheres are the two sides of the Earth's surface.
半球是地球表面的两个面。
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2. The hemispheres of the planet are divided by oceans and landmasses.
行星的两半球被海洋和大陆分隔。
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3. She spent most of her childhood in the hemisphere where she was born.
她大部分童年时光都在出生地所在的半球度过。