watershed

分水岭、转捩点、关键时刻

That election was a watershed in the country's modern history.

那场选举是该国现代史上的分水岭。

分水岭、分水界

The mountain range forms the watershed between two major rivers.

这道山脉构成两条大河之间的分水岭。

集水区、流域

Logging upstream has damaged the entire watershed.

上游的伐木已经破坏了整个集水区。

儿少不宜时段、分级时段英式

The scene was cut because it aired before the watershed.

那段画面因为在儿少不宜时段之前播出而被剪掉。

划时代的、关键性的

The ruling was a watershed moment for workers' rights.

该判决是劳工权益的关键时刻。