日月交替，昼夜更替。

The sun and moon alternate, bringing day and night.

昼夜的交替是一种自然现象。

The alternation of day and night is a natural phenomenon.

地球的轴的旋转导致了昼夜交替。

The axial rotation of the Earth causes day and night.

地球的旋转运动导致了昼夜交替。

The rotational motion of the Earth causes day and night.

地球的自旋度影响了昼夜的变化。

The Earth's rotation affects the change between day and night.