The lunar calendar (nong li) is the traditional Chinese calendar and is often used in agriculture.

农历是中国的传统历法，农业上使用的历书。

According to nong li,the crescent appears on the first day of each month and full moon comes out at the middle of the month.

新月是农历一个月的第一天，满月到了，就是农历的月中。

The cycle lasts for about 30 days.

这样循环一个月，大概要 30 天。

24 days mark 24 divisions of the solar year in nong li,according to the different positions of the Sun.

农历，又根据太阳的位置，设立了二十四节气。

For example,the division ‘Lichun’ or ‘the beginning of Spring’,reminds people that Spring is coming.

例如，立春，提醒人们开始进入了春天。

‘Jingzhe’ or ‘the walking of insects’ means that the weather is getting warmer.

惊蛰时，天气渐渐暖和，小虫子都出来活动。

‘Lixia’ or ‘the beginning of Summer’ is the point that crops are blooming.

立夏，农作物开始旺盛地生长。

‘Dahan’ or ‘the great cold’ is the end of severe Winter.

大寒以后，天气逐渐暖和了。

All these create a circle.

至此，地球绕太阳公转了一周，完成了一个循环。

Year after year people experience the mysteries of nature with nong li.

一年又一年，人们根据农历观察自然，体会大自然的神秘。