I balanced on the ledge.

我在岩脊上站稳。

《柯林斯英汉双解大词典》

I sit on the ledge and Grandmother rises and comes to me.

我坐在窗台和祖母上升，到我这里来。

youdao

This soldier was standing on the ledge over the valley and had a moment.

这名士兵站在山谷边矗立不动。

youdao

I lighted my lantern, and found that I was perched on a narrow ledge, almost at the end of my rope literally and figuratively.

VOA: special.2009.12.07

"So I think they get more nervous. When I am climbing out the window to climb on a ledge, the first ones go, 'Whoa,whoa,whoa,wait!'

VOA: standard.2010.07.26

He was the equivalent of those who urge a troubled person on the ledge of a building to jump.

FORBES: Fact and Comment

The man in black is stood way up, on the ledge of the 90th floor of America's tallest building.

BBC: Chicago��s celluloid city

Amy, finally becoming the wife that he deserved (more on that, below), climbs on the ledge to join him.

FORBES: Doctor Who 7.05: The Clock Winds Down for Amy and Rory