at the edge of

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

水从稻田边流进沟里。

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.

在辽阔草原边缘，有貌似马儿有蹄草动物、只很像羚羊南方有蹄类和只地獭正在静静觅，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，清王朝为了挽救濒临灭亡命运，推行了系会改革措施。