Dìqiú rào tàiyáng yùnxíng de guǐdào shì yígè tuǒyuán.
The orbit of the Earth around the Sun is an ellipse.
Tips
culture
The Oval Office (椭圆形办公室) in the White House gets its name from its elliptical shape. This is one of the most widely recognized 椭圆 shapes in modern politics.
