Scientists have even found bumps on the arm bones of dinosaurs, where the quills had attached.

科学家门甚至找到了恐龙上肢骨上的突起，这种突起往往可以附着羽茎。

youdao

If the quills are not to be used immediately after winding, they are usually taken to a room to be conditioned with hot, humid air.

如果卷纬完成之后，纬管纱并不马上使用，通常被送到纬纱室，纬纱室内的温湿度较高。

youdao

One spaniel charged a porcupine five times — with a cost to remove the quills at $250 per poke. Another dog had buckshot removed from its hindquarters.

一只猎犬的价格相当于5只豪猪的价格，包括￥250每桶的去除毛的价格，另一条狗的后腿切除肿瘤也用了一大笔费用。

youdao

The San artists applied the paint with porcupine quills and plant fronds.

FORBES: South African Boutique Resort Offers Rock Art and Mystery

He has also worked on films including Quills, Thunderbirds, Little Voice, The Importance of Being Earnest, An Ideal Husband and The Avengers.

BBC: Peter Swords King nominated for Oscar and Bafta award

We also grouped together similar tools to reduce the size of the list--the pencil is a stand in for pens, quills, and brushes.

FORBES: The 20 Most Important Tools Ever