北半球 (běibànqiú) means 'Northern Hemisphere' and refers to the half of the Earth north of the equator. It is used in geographic, climate, and seasonal contexts. For instance, when winter falls in the 北半球, it is summer in the Southern Hemisphere.
北半球的大部分国家现在正处于夏季。
běi bànqiú de dà bùfen guójiā xiànzài zhèng chǔyú xiàjì.
Most countries in the Northern Hemisphere are currently in summer.
中国位于北半球,四季分明。
zhōngguó wèiyú běi bànqiú, sìjì fēnmíng.
China is located in the Northern Hemisphere and has four distinct seasons.
北半球的冬天来临时,南半球正好是夏天。
běi bànqiú de dōngtiān láilín shí, nán bànqiú zhènghǎo shì xiàtiān.
When winter arrives in the Northern Hemisphere, it is exactly summer in the Southern Hemisphere.