为什么月亮的形状会有规律地变化？

Why does the shape of the moon change regularly?

youdao

因此，这一形状就有了一个名称，即像犄角一样的月亮外形。

The shape thus took its name from this horned appearance of the moon.

youdao

因此，这一形状就有了一个名称，即像犄角一样的月亮外形。

The shape thus took its name from this horned appearance of the moon.

youdao