一带
yīdài · HSK 5
region
🏘️ 一带 = 一 (one) + 带 (belt/zone) — one belt of land, i.e. an area
一 means 'one' and 带 means 'belt' or 'zone'. Together 一带 literally reads as 'one belt/strip', extended to mean a stretch of territory — a neighborhood, area, or region. Same 带 as in 'Belt and Road' (一带一路).
一 — single horizontal stroke
一 is one of the simplest pictographs in Chinese, depicting a single horizontal line to represent the number one. It has retained essentially the same form since oracle bone script over 3,000 years ago. By extension it also means 'first,' 'whole,' or 'same.'
带 — belt/sash 巾 at bottom + ornaments above
带 originally pictured a belt or sash with hanging ornaments or pendants tied at the waist; the bottom 巾 (cloth) reinforces the textile meaning. From the literal 'belt' it extended to 'carry, bring along' (as a belt holds things) and to 'zone/region' (a strip of land).