地上的羽用英语可以翻译成 "feathers on the ground" 或者 "fallen feathers." 这个说法来自于羽毛在鸟类身上的功能,羽毛是鸟类用来保暖,保护身体,帮助飞行和通信的器官。当鸟类捡起或丢掉它们的羽毛时,这些羽毛就会掉落在地上。

下面是一些用 "feathers on the ground" 或 "fallen feathers" 这个表达的英文例句:

"I noticed a few feathers on the ground when I was walking through the park this morning." (我今天早上在公园散步时发现了几片地上的羽毛。)
"There were so many fallen feathers on the ground after the peacocks finished preening themselves." (孔雀完成修剪羽毛之后,地上有很多掉落的羽毛。)
"She picked up the feathers on the ground and added them to her collection." (她捡起地上的羽毛,并把它们加入到她的收藏中。)