周
zhōu
week
weekly; variant of 周[zhou1]
enclosure (冂) + earth (土) + mouth (口) = a complete cycle
周 originally depicted land divided and enclosed on all sides — a complete, bounded territory. The sense of 'all around' and 'full circuit' gave rise to the modern meaning of a week: one full turn of days.
冂EnclosureSemantic
口MouthSemantic
土EarthSemantic
这周你有空吗？
zhè zhōu nǐ yǒu kòng ma？
Do you have free time this week?
他每周都会去图书馆看书。
tā měi zhōu dōu huì qù túshūguǎn kàn shū。
He goes to the library to read every week.