The earth takes a year to make a circuit of the sun. 地球绕太阳运行一周需要一年的时间。
The trees form a natural protection from the sun's rays. 树木起天然的保护作用，遮挡了阳光的照射。She rolled over to let the sun brown her back. 她翻了个身，让太阳把她的`背晒黑点。The earth takes a year to orbit the sun. 地球绕太阳一周要一年的时间。