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

農(nóng)歷是中國的傳統(tǒng)歷法，農(nóng)業(yè)上使用的歷書。

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.

新月是農(nóng)歷一個月的第一天，滿月到了，就是農(nóng)歷的月中。

The cycle lasts for about 30 days.

這樣循環(huán)一個月，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.

農(nóng)歷，又根據(jù)太陽的位置，設(shè)立了二十四節(jié)氣。

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

例如，立春，提醒人們開始進入了春天。

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

驚蟄時，天氣漸漸暖和，小蟲子都出來活動。

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

立夏，農(nóng)作物開始旺盛地生長。

'Dahan' or 'the great cold' is the end of severe Winter.

大寒以后，天氣逐漸暖和了。

All these create a circle.

至此，地球繞太陽公轉(zhuǎn)了一周，完成了一個循環(huán)。

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

一年又一年，人們根據(jù)農(nóng)歷觀察自然，體會大自然的神秘。