sun

The sun rises in the east every morning and sets in the west in the evening.

(Chinese) 太阳每天早上从东方升起，傍晚在西方落下。

Planets in our solar system travel in elliptical orbits around the sun.

(Chinese) 我们太阳系中的行星沿着椭圆轨道绕着太阳运行。