Help me to translate these sentences into Chinese, using very simple words:
"Chinese New Year, Celebrated internationally, including in Chinatowns, Chinese New Year is the most important holiday of the Chinese people, and many East Asians such as Mongolians, Koreans and Vietnamese who have holidays which fall on the same day.
New Year's Eve and New Year's Day are celebrated as a family affair, a time of reunion and thanksgiving. The celebration was traditionally highlighted with a religious ceremony given in honor of Heaven and Earth, the gods of the household and the family ancestors. "
and give the definition of the next words (very shortly, using 最简单的词, in chinese)