Green Watershed绿色流域
Watershed sanitation流域卫生
watershed governance本论文研究其流域治理
watershed observation集水区观测
watershed sediment流域泥沙
watershed d分水岭;集水区
watershed boundary分水界
Chaohu watershed巢湖流域
N-COUNT（可数名词） If something such as an event is a watershed in the history or development of something, it is very important because it represents the beginning of a new stage in it. 分水岭; 转折点
The election of Mary Robinson in 1990 was a watershed in Irish politics.
1990年玛丽·鲁滨逊的当选是爱尔兰政治的分水岭。