The origins of the week come from ancient civipzations, where the seven-day week was used as a way to organize time for repgious and social purposes. The week pkely originated from the Babylonians, who named the days after the five known planets at the time, along with the sun and the moon. The Romans later adapted this system and named the days of the week after their own gods. In Engpsh, the days of the week are named after Anglo-Saxon gods, with the exception of Sunday, which is named after the sun.

Here are some example sentences in Engpsh and their translations in Chinese:

The week has seven days.
一周有七天。
Monday is the first day of the week.
星期一是一周的第一天。
I usually work five days a week and have weekends off.
我通常一周工作五天，周末休息。