The Haab USES 18 months with 20 days in each month. There is a 19th month called a Vayeb and USES the 5 extra days.
哈伯使用18个月，每个月有20天，还有称为瓦伊伯的第19个月，只有年终额外的5天。
The Haab USES 18 months with 20 days in each month. There is a 19th month called a Vayeb and USES the 5 extra days.
哈伯使用18个月，每个月有20天，还有称为瓦伊伯的第19个月，只有年终额外的5天。
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