名词
中文翻译：主要纬线
同义词：
['main meridian', 'principal axis例句：1. The principal meridian runs through the center of the city.（主要纬线穿过市中心。）2. The main meridian is the easiest way to travel between the two cities.（主要纬线是两个城市之间旅行最简便的方式。）']
例句：
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1. The principal meridian runs through the center of the city.
主要纬线穿过市中心。
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2. The main meridian is the easiest way to travel between the two cities.
主要纬线是两个城市之间旅行最简便的方式。
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3. The principal meridian divides the earth into two hemispheres.
主要纬线将地球分为两个半球。