How to break the moon in the lunar leap year?

The lunar leap month in China is set by the "7 leap month method in 19", that is, there are 7 leap months in 19, with an average leap month every 2-3 years. Setting a leap month divides the lunar calendar into a normal year (about 354 days) and a leap year (about 384 days). A lunar year with a leap month is a lunar leap year, which is one tropic year longer than the solar calendar. On the contrary, a lunar year without a leap month is a lunar year, because its length is one tropic year shorter than the solar calendar.