reaches

英 [ˈriːtʃɪz]

美 [ˈriːtʃɪz]

n. 河段;流域;(上、中或下)游; 区域; 地带; (组织中的)层级
v. 到达; 抵达; 引起…的注意; 增加到，提升到(某一水平、速度等)
reach的第三人称单数

Collins.1

柯林斯词典

N-PLURAL 河段;流域;（上、中或下）游
The upper, middle, or lowerreachesof a river are parts of a river. The upperreachesare nearer to the river's source and the lowerreachesare nearer to the sea into which it flows.
1. This year water levels in the middle and lower reaches of the Yangtze are unusually high.
  长江今年中下游的水位都过高。
N-PLURAL （外）围；（远）处
You can refer to the distant or outer parts of a place or area as the far, farthest, or outerreaches.
1. ...the outer reaches of the solar system.
  太阳系的外围
2. ...the farthest reaches of Cambodia.
  柬埔寨的最边远地区
N-PLURAL （组织或机构中的）层级
You can refer to the higher or lower levels of an organization as its upper or lowerreaches.
1. ...the upper reaches of the legal profession.
  法律行业的上层
2. ...the lower reaches of the accounting world.
  会计行业中较低的层级

The twin worship phenomenon also existed in the Hezhe nationality in the lower reaches of Songhua River.
松花江下游的赫哲族中也存在过孪生子崇拜现象。
Zhengzhou lies in the lower and middle reaches of Yellow River, the Mother River of China.
郑州位于中华民族的母亲河黄河中下游的分界处。
It's an attempt to control what reaches the public. Big Brother is watching.
这么做的目的是要控制公众得到的信息。“老大哥”正盯着呢。
Through many times experiment and probation, the utility model has good effect and reaches design requirement.
本实用新型经多次实验试用，效果良好，达到了设计要求。
Proper rubbish disposal reaches 100%.
垃圾清运率和处理率均达100%。
Pure water sometimes does not freeze until it reaches minus 40 degrees Celsius.
纯净水有时候要降到零下40摄氏度才会结冰。
The computer doesn't mimic human thought; it reaches the same ends by different means.
计算机并没有模仿人的思维，而是通过不同的手段达到了相同的目的。
This year water levels in the middle and lower reaches of the Yangtze are unusually high.
长江今年中下游的水位都过高。
The practical operation of the system reaches expected targets.
系统现场运行完全达到了预期的目标。
And as an illustration, the risk levels of flood control capacity for some reaches are computed.
并以实例计算了某河段防洪能力的风险度。