The tilt of Earth's axis, toward the Sun at some times of the year and away from the Sun at other times, is responsible for the annual cycle of seasons.

地轴的倾斜在一年中的某些时候朝向太阳，而在其它时间远离太阳，造成了每年的季节循环。

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The tilt of the earth's axis, that imaginary pole that runs through the center of the earth.

地轴是我们虚构的穿过地心的一个倾斜的直线轴。

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The inclination, or tilt, of Earth's axis also varies periodically, moving between 22 degrees and 5 degrees.

地轴的倾角也会周期性地变化，在22度到5度之间移动。

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However, because Mercury has virtually no tilt to its axis, there are actually parts of the surface that never see sunlight at all.

FORBES: NASA Has Discovered Water Ice On Mercury

We have the seasons we currently do, due to the Earth's tilt at an angle of 23 degrees on its axis.

BBC: Why the Moon is getting further away from Earth