从属面积

支流流域面积

tributaries───n.支流（tributary复数形式）

tributary───n.（大河或湖泊的）支流；进贡国，附属国；adj.纳贡的；促进的

frontal area───正面；锋面；最大截面；[昆]额区

gray area───灰色地带，灰色区域

rural area───[农]农村地区；乡郊地区

six-yard area───六码区域

tribunary───论坛

Yangtze River coastal and tributary area of the Three Gorges Reservoir, is one of the main origin of Chinese nation ancient culture.───三峡库区长江两岸及支流区域，是中华民族人类古文化主要发源地之一。

main urban area locates in the north of Hun River, a major tributary of the Liao River.───主要市区位于柬埔寨北部的河，主要支流辽河。

The most likely tributary area is the Lasithi plain.