翻译十

ChineseEraTheChineseeraisthesymbolthattheChinesecalendarusesforrecordingandnamingyears.ThetenHeavenlyStemsare:jia,yi,bing,ding,wu,ji,geng,xin,ren,gui.ThetwelveEarthlyBranchesare:zi.chou,yin,mou,chen,si,wu,wei,shen,you,xu,hai.Afterobservingthelunarmonth,theancientsfoundthatthemoonalwayswazesandwanesroughly12timesayear,andtwolunarmonthsaccountforabout60days,sotheorderofthetenHeavenlyStemsandtheorderofthetwelveEarthlyBranchesareproperlymatchedinturn.Intermsofrecordingdate,60yearsisconsideredtobeafulltimecycle.TheChineseerachronologywasfirstinventedinancienttimesandisstillinusenow.accordingtothechronologyofthetenHeavenlyStems,2011istheyearoftheseventhofthetenHeavenlyStemsandthefifthofthetwelveEarthlyBranches.

天干地支是中国历法中用以记录和命名年岁的方法。十天干为：甲、乙、丙、丁、戊、已、庚、辛、壬、癸；十二地支为：子、丑、寅、卯、辰、巳、午、未、申、 酉、戊、亥。古人观测朔望月，发现月亮圆缺12次大体上是一年的天数，而两个朔望月约是60天。古人以十天干与十二地支的顺序依次相配，记录不同年份，60年为一个轮回。干支纪年法从古沿用至今。按干支纪年法，2011年便是辛卯年。