watershed
['wɔ:təʃed]
n.流域, 分水岭, 转折点
例句与用法：
Leaving her first job was a watershed in her life.
辞去她的第一份工作是她生活中的一个转折点。
Her visit to India proves to be a watershed in her life.
她的印度之行成了她一生的转折点。
Her visit to India proved to be a watershed in her life.
她的印度之行成了她一生的转折点。
详细释义：
n.
1. 分水岭
2. 流域
3. 转折点; 关键时刻