领水

例句：

1. 1. The river flows through the city, and its visibility is much better in the upper reaches.
   这条河穿过城市，在上游的可见度要高得多。
2. 2. The fishermen rely on the clear water of the upper reaches for their livelihood.
   渔民们依靠上游清澈的水作为生计来源。
3. 3. The upper reaches of the river are often considered to be more pristine than the lower parts.
   人们普遍认为河流的上游比下游更原始。