downstream pier nose

例句：

1. 1. The river flows through the city and eventually reaches the sea.
   这条河流过城市，最终流入大海。
2. 2.The scientists studied the effects of pollution on the downstream ecosystem.
   科学家们研究了污染对下游生态系统的影响。
3. 3. The team decided to move their operations to a more downstream location.
   团队决定将他们的操作转移到一个更下游的位置。