什么是 quill?The hollow stemlike main shaft of a feather. Also called calamus.Any of the larger wing or tail feathers of a bird.A writing pen made from the shaft of a feather.Music A plectrum for a stringed instrument of the clavichord type.Music A pipe having a hollow stem.A toothpick made from the stem of a feather.One of the sharp hollow spines of a porcupine or hedgehog.A spindle or bobbin around which yarn is wound in weaving.A hollow shaft that rotates on a solid shaft when gears are engaged.To wind (thread or yarn) onto a quill.To make or press small ridges in (fabric).