Plow (6000 BC)

The domestication of animals such as oxen provided mankind with the pulling power needed to develop the first plows. They consisted of a frame holding a vertical wooden stick that was dragged through the topsoil -- and are still used in many parts of the world.

犁（公元前6000年）

驯化牛等动物为人类制造首批耕地用的犁提供了牵引力。犁由一个框架组成，框架上支撑着一根垂直的木棍，通过牛拉犁，木棍就可以划过表层土壤。如今全球很多地区仍在使用。