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The site shows example sentences for English words. How the word or phrase could be used in a sentence?
" ... “Without an extra, or intercalary, day on February 29 nearly every four years, we would lose almost six hours every year. After only 100 years, a calendar without leap years would be off by approximately 24 days in relation to fixed seasonal days such as the vernal equinox or the winter solstice.” ... "