After full moon comes the waning moon.

满月之后是月亏.

Waning moon weakens spring wind, hatred and pain got aggravated

残月碎春风倍感恨痛

They knew that the waning moon rose later each night, until it vanished in the sunrise.

他们还知道，月亏期间，月亮每晚的升起时间都会推迟，直到消失在日出里。