at the edge of

A lone hiker pauses at the edge of a rugged cliff.

一名孤独徒步者在陡峭悬崖停下。

The water flows into the ditch at the edge of the rice field.

水从稻田流进沟里。

At the edge of a sprawling grassland, a pair of hoofed grazers resembling horses, an antelopelike notoungulate and a ground sloth feed quietly, oblivious to their impending doom.

在辽阔草原，有一对貌似马儿有蹄草食动物、一只很像羚羊南方有蹄和一只地獭正在静静觅食，没有注意到大祸即将临头。

In the early 20th century, Qing dynasty carried out a series of social reformational policies in order to remedy its political power being at the edge of perdition.

20世纪初，为了挽救濒临灭亡命运，推行了一系列社会改革措施。