feather 可数吗feather是不是可数名词~

feather 可数吗feather是不是可数名词~ feather（羽毛）可数吗 feather feather feather fur和 feather可不可数 feather and feather 意思? feather是什么意思 feather 小朋友 feather音标 feather是不是可数名词我在书上看到了feathers 变桨方向,后面是to feather.这个to feather在这里应该怎样解释 像羽毛一样轻英语怎么说像羽毛一样轻是as light as a feather 还是 as light as feather?(feather 是可数名词哦 ） 相同的还有：as busy as bee 还是 as busy as a bee 等等 像羽毛一样轻英语怎么说像羽毛一样轻是as light as a feather 还是 as light as feather?(feather 是可数名词哦 ） 相同的还有：as busy as bee 还是 as busy as a bee 等等~~~ down feather是什么意思 fine feather是什么意思 Feather什么意思