write with a quill
这里的 quill 指羽毛笔，即用鸟羽制成、蘸墨水书写的笔。
He wrote the letter with a quill and ink.
他用羽毛笔和墨水写了那封信。
（鸟的）飞羽或尾羽；羽管；羽根；（豪猪或刺猬的）硬刺；鱿鱼的内壳；拨子；琴拨
a pen, especially one made from a bird's feather
羽毛的下部羽轴,特指没有羽枝的部分。
The lower shaft of a feather, specifically the region lacking barbs.
羽毛笔
pen made from a bird's feather
羽毛笔。
A pen made from a feather.
豪猪或刺猬的硬刺
a stiff hollow protective spine on a porcupine or hedgehog
任何笔。
Any pen.
鸟类的较大翼羽或尾羽
any of the larger wing or tail feathers of a bird
豪猪或刺猬皮肤上生长的尖利、带倒刺且易脱落的针状结构,用于防御捕食者。
A sharply pointed, barbed, and easily detached needle-like structure that grows on the skin of a porcupine or hedgehog as a defense against predators.
一种薄树皮,尤其是肉桂或金鸡纳树皮,卷成管状。
A thin piece of bark, especially of cinnamon or cinchona, curled up into a tube.
鱿鱼的羽状壳。
The pen of a squid.
弹奏某些乐器时用来拨弦的拨子。
The plectrum with which musicians strike the strings of certain instruments.
乐器的管。
The tube of a musical instrument.
形状似羽管的东西,如轮状皱领的褶或平面,或(织布)梭子中绕纬线的锭子或线轴。
Something having the form of a quill, such as the fold or plain of a ruff, or (weaving) a spindle, or spool, upon which the thread for the woof is wound in a shuttle.
套筒驱动,具有空心轴,内部装有另一可移动轴。
A quill drive, having a hollow shaft with another movable shaft inside it.
The scholar dipped his quill into the inkpot and began to write.
学者将羽毛笔蘸进墨水瓶，开始书写。
用法提示：quill 此处作名词，意为“羽毛笔”，是书写工具。
She prefers writing letters with a quill instead of a modern pen.
她更喜欢用羽毛笔写信，而不是现代钢笔。
用法提示：quill 作名词指“羽毛笔”，句中用作介词 with 的宾语。
The museum displayed a quill and inkwell used by the poet.
博物馆展出了那位诗人使用过的羽毛笔和墨水瓶。
用法提示：quill 作名词，指“羽毛笔”，与 inkwell 并列作 displayed 的宾语。
这里的 quill 指羽毛笔，即用鸟羽制成、蘸墨水书写的笔。
He wrote the letter with a quill and ink.
他用羽毛笔和墨水写了那封信。
quill 也指豪猪或刺猬身上的硬刺，是可数名词，常用复数 quills。
Hedgehogs have quills to protect themselves.
刺猬身上长有棘刺来保护自己。
此用法中 quill 指卷成管状的薄树皮，尤指肉桂或金鸡纳树皮，属较专业义项。
The shop sells quills of cinnamon bark for baking.
这家店出售用于烘焙的卷成管状的肉桂皮。
spine 范围更广，可指任何动植物甚至人体的刺（如仙人掌的刺、脊柱）；在说豪猪或刺猬的防护性棘刺时可直接替换 quill，但不像 quill 那样强调中空、带倒刺且易脱落。
prickle 通常指小而尖的皮刺，常见于植物（如蔷薇），也可用于刺猬的短刺；但豪猪的 quill 粗长、中空，故仅在指刺猬等小动物时较接近，不能完全互换。
grammar · medium
易错句子The bird has many quill on its wing.
正确表达The bird has many quills on its wing.
quill 是可数名词，复数形式为 quills。汉语名词没有复数变化，所以学习者容易漏掉 -s；句中有 many 时更必须用复数。
grammar · medium
易错句子The porcupine raises its feathers when threatened.
正确表达The porcupine raises its quills when threatened.
feather 指鸟类的羽毛，而豪猪或刺猬身上的硬刺叫 quill。这里说的是防御性的尖刺，所以要用 quills 而不是 feathers。
grammar · medium
易错句子He wrote the letter with quill.
正确表达He wrote the letter with a quill.
quill 是单数可数名词，单独使用时前面需要冠词 a/an 或 the；这里指“用一支羽毛笔”，所以要说 with a quill。
羽毛笔
He signed the document with an old quill pen.
他用一支旧羽毛笔签署了文件。
鹅羽管；鹅毛笔
The scribe sharpened a goose quill before writing.
抄写员在书写前削尖了一根鹅羽管。
豪猪刺
The porcupine raised its quills when threatened.
豪猪受到威胁时会竖起身上的刺。
羽毛笔刀
He used a quill knife to sharpen the feather's tip.
他用一把羽毛笔刀削尖羽毛的顶端。
用羽毛笔写字
In the old days, clerks would write with a quill.
在过去，文书们常用羽毛笔写字。
羽毛笔需要蘸墨水才能书写。
以前常用羽毛笔在羊皮纸上写字。
用羽毛笔写成的文稿称为手稿。
羽毛笔常用于书法艺术。
羽毛笔由鸟类的羽毛制成。
Dictionary facts from ECDICT, WIKTIONARY.