3 sentences

1. 赤道是零度纬线。

   chì​dào shì líng dù wěi xiàn.

   The equator is the zero-degree line of latitude.

   Source: Dong Chinese Dictionary

2. 它从赤道一直延伸至北极圈内。

   tā cóng chì​dào yī​zhí yán​shēn zhì Běi​jí​quān nèi.

   It stretches from the equator to beyond the Arctic Circle.

   Source: OpenSubtitles

3. 地球被赤道分为北半球和南半球。

   dì​qiú bèi chì​dào fēn​wéi běi​bàn​qiú hé nán bàn​qiú.

   The Earth is divided into the Northern and Southern Hemispheres by the equator.

   Source: Dong Chinese Dictionary