This is just because there will be a longer winter vacation in 2007 caused by the intercalary lunar july .

这是因为农历闰七月致使2007年的寒假来得长一点．

Chinese calendar : the traditional lunisolar calendar of the chinese people , based on 24 seasonal segments each about 15 days long . An intercalary month is occasionally necessary to reconcile the lunar year with the solar year .

农历:中国人传统的日月年历,以24节气为基础,每个节气长约15天,偶然需要一个闰月来使阴历年与阳历年相一致.

I think we should do it at least twice in the space of each five-year plan , in the same way as the intercalary month in a lunar leap year turns up once in three years and twice in five .

我看至少是象闰年、闰月一样，三年一闯，五年再闯，一个五年计划里头至少搞两次。