I sat down at the water's edge.

我在水边坐了下来。

《牛津词典》

We walked down to the water's edge.

我们步行到水边去。

《牛津词典》

She was standing at the water's edge.

她正站在水边。

《柯林斯英汉双解大词典》

They enjoy sailing and fishing, water skiing,swimming, or just sitting at the water's edge, daydreaming.

VOA: special.2010.08.30

Three families of elephants have come to the water's edge.

VOA: special.2009.08.19

No matter where it starts, an economic crisis does not stop at the water's edge.

BBC: In full: Brown's speech to Congress

At the water's edge I meet an American woman in a wide-brimmed hat, searching for tiny wild orchids.

BBC: Swiss movement

Not so long ago, there was a tradition in Washington that said politics should stop at the water's edge.

NPR: Political Roundup: Pelosi in Syria, Iraq Debate