中译英
地球自转与公转运动的结合使其产生了地球上的昼夜交替和四季变化(地球自转和公转的速度是不均匀的)。同时，由于受到太阳、月球、和附近行星的引力作用以及地球大气、海洋和地球内部物质的等各种因素的影响，地球自转轴在空间和地球本体内的方向都要产生变化。
The alteration of day and night and the change of four seasons are caused by the rotation and revolution of the earth。(the earth has different speed for these two movements。
) Meanwhile, as influnced by the pulling force from the sun, the moon and the planets nearby and factors such as air, oceans and interior substances of the earth, the direction of the earth's rotation axis will be kept changing inside and outside the ball。
From OKWAP Online Serivce Yunfei。
答：懒得画图，你按我说的，再看一下，就行了。 1.为什么黄赤交角变大,太阳直射范围变大? 黄赤交角的角度＝太阳直射点最大的角度 目前黄赤交角的角度是23°26′，太...详情>>
