yarn是一个英语单词，主要用作名词和动词，主要意思为“（棉、毛等的）纱，纱线，纺线”等。

以下是三个中英文例句：

Feathers, yarn. 鹅毛，纱线。

On another, the boatman — also basking in the sun — leisurely twists some yarn into rope. 另一条船上的船夫也沐浴在阳光里，悠闲地用纱线搓着绳子。

The cold-bed batch type steam dyeing process for woolen yarn reactive dyes is described in this book. 本书介绍了羊毛纱线活性染料的冷床间歇式蒸染色方法。