The problem is getting worse: in September the number of registered unemployed took its biggest monthly leap for15 years.

Chinese calendar the calendar used by the Jews; dates from 3761 BC ( the assumed date of the creation of the world); a lunar year of 354 days is adjusted to the solar year by periodic leap years.

犹太人用的日历：自公元年（传说中的创世纪）开始；天的阴历年用闰年调整以和阳历年对齐。

January 4 is the fourth day of the year in the Gregorian calendar. There are 361 days remaining until the end of the year ( 362 in leap years).

1月4日是阳历年的第4天，离一年的结束还有361天（闰年是362天）。

December 28 is the 362nd day of the year ( 363rd in leap years) in the Gregorian calendar. There are three days remaining until the end of the year.

12月28日是阳历一年中的第362天（闰年第363天），离全年的结束还有3天。

All years that are divisible by 4 should be leap years of 366 days, except those which coincide with the beginning of a century.

除了世纪开始的年份外，所有被四整除的年份应是由366天构成的闰年。

Julius Caesar introduced Leap Years around 45BCE by adding one day to the last month of the calendar year, February.

公元前458年，凯撒引进了闰年的概念，在一年的最后一个月加上一天，也就是在二月加上一天。

While simple, this rule actually created too many leap years to keep the Roman and lunar calendars aligned.

这种方法虽然简单，但是与阴历相比，《儒略历》会造成过多的闰年。

Leap years are necessary to keep our calendar in alignment with the Earths revolutions around the sun.

闰年是对地球绕太阳运转所需时间和公历时间之差所作的调整。

Worse, certain gifted children can leap years ahead of their peers in one area yet fall behind in another.

更为糟糕的是，一些天赋儿童在某一领域超前同龄人几年，但是却在另一领域落后于同龄人。

So, Patrick gave in and they finally agreed on allowing it during leap years.

于是帕特里克做出让步，最后他们商定女子可以在闰年期间求婚。

The character of leap years in Gui Mao Yuan calendar

《癸卯元历》闰年的特点

The basic theory of centrifugal nozzle is introduced briefly in this paper.

简述了离心式喷嘴的基本理论.

Concepts and knowledge on basic theory of Education are introduced systematically.

该课程系统介绍教育学的基本理论的概念和知识.

Sports Physiology is a required basic theory course in physical education colleges.

《运动生理学》是体育院校学生必修的基础理论课.

The basic theory of grey situation decision-making is briefly introduced.

简要介绍灰局势决策的基本原理.

The basic theory for analysis of lubrication failure is presented.

给出了润滑失效分析的基本理论.

The basic theory and characteristics of IGBT induction-heating power supply are introduced.

GBT感应加热电源以其优异的性能,已在许多工业领域得到应用.

Some basic theory and computing methods are discussed in many chapters.

简单介绍了扭转振动的一些理论和计算方法.

This paper accounted briefly the basic theory of N-body central configuration.

简述了空间多体中心构型的基本理论.

Automaton theory is a basic theory of compile routine for identifying words.

自动机理论是编译程序中单词识别的基本理论.

To understand basic theory of cancer pathogenesis, invasion and metastasis.

了解肿瘤发生发展的基本理论, 肿瘤浸润和转移的机制.