汉语翻译：
n. 立契约的人, 承包商
【化】 承包者; 承包工厂
【经】 包工者, 包造者, 承包人英语解释：
名词 contractor:

someone (a person or firm) who contracts to build things

the bridge player in contract bridge who wins the bidding and can declare which suit is to be trumps同义词：declarer

(law) a party to a contract

a bodily organ that contracts同义词：contractile organ

例句：

My boss have give me a free hand in deciding which outside contractor to use.老板已经给了我自主权，让我决定用哪家承包商。

The Detroit contractor was asked to kick$5,000 back as commission.那个底特律的承包商被要求退还5000美元作为佣金。

The person is a building contractor.那人是个承建商。

Who is the contractor on the new motorway?谁是这条新公路的承包商?

详细解释：
con.trac.tor
n.（名词）
One that agrees to furnish materials or perform services at a specified price, especially for construction work.
订约人，承包人：同意以某一具体价格供应材料或提供服务的人，尤指建筑工程的承包人
Something, especially a muscle, that contracts.
收缩物：收缩的事物，尤指肌肉