upstream of the Yangtze River

• 长江上游

upstream of the Yangtze River的用法和样例：

例句

1. It can improve the navigational condition of the upper reaches of the Yangtze River.
   三峡工程可以改善长江上游航道的通航条件。
2. Similar sediment pollution scenarios are occurring in the headwaters of the Salween and Yangtze Rivers.
   在萨尔温江和长江上游也存在类似的泥沙污染状况。