at the edge of

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

水从稻田边流进沟里。

2.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.

在辽阔草原的边缘，有一对貌似马儿的有蹄草动物、一只很像羚羊的南方有蹄类和一只地獭正在，有注意到大祸即将临头。

3.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的命运，推行了一系列的社会改革措施。