C 马具，挽具equipment by which a horse is controlled and fastened to the cart, plough, etc.

　harness　用作名词的基本意思是“马具，挽具”，引申可指“类似马具的装备（如降落伞背带或幼童的系带）”。

　double ～　（可套两匹马的）双挽具
　single ～　〈谑〉光棍生活
　in ～　在日常工作中，在职，一起工作，相互配合

　Bridle is a harness.　马勒是一件马具。
　He paid ten dollars for the new harness.　他花十美元买了这件马具。

 ♣ in double harness
　两人一起，夫妻一起　with a partner, or with a husband or wife
　The brothers work in double harness.　哥俩一起工作。

1. vt.给（马等）装上挽具　put a harness on (especially a horse)
2. vt.治理，利用　control; use

　I harness the horse to the cart.　我把马套在车上。
　Scientists have known how to harness the limitless power of the sun.　科学家们已知道如何利用无穷尽的太阳能。
　Yellow River has been harnessed.　黄河已被治理。

　［词源］中古英语harneis（盔甲，挽具）