He writes with a feather pen.

他用羽毛笔写字。

She put a feather in her hat.

她在帽子上插了一根羽毛。

He used a feather to write a letter.

他用一根羽毛写了一封信。

The bird lost a feather while flying.

那只鸟在飞行时掉了一根羽毛。

Light as a feather is a common simile.

“像羽毛一样轻”是一个常见的明喻。

He used a feather to tickle the sleeping cat.

他用一根羽毛使发痒那只睡着的猫。

He likes to use a feather to tickle his sister.

他喜欢用羽毛挠痒痒他的妹妹。

She likes to use a feather to tickle her friends.

她喜欢用羽毛逗乐她的朋友。

He used a feather to tickle the bottom of my feet.

他用羽毛在我脚底痒痒。

They are truly birds of a feather, always causing trouble together.

他们俩真是一丘之貉，总是一起惹麻烦。