the upstream of Yangtze River的用法和樣例：
例句
- An economic centre in the upper reaches of Yangtze River, a new Chongqing, is striding towards the world with development!
一個(gè)長(cháng)江上游經(jīng)濟中心的新重慶正在開(kāi)發(fā)中走向世界！ - Similar sediment pollution scenarios are occurring in the headwaters of the Salween and Yangtze Rivers.
在薩爾溫江和長(cháng)江上游也存在類(lèi)似的泥沙污染狀況。
