1. Think of metasearch engines as the middleman between you and a large group of search engines. 在你和一大群搜索引擎之间的中间人认为是中间搜索引擎。
2. Both sellers and buyers would do better than in the illegal market, where much of the money goes to the middleman. 买卖双方都要比在非法市场上更合算，因为那里的不少钱财都落到了中间人的腰包。
3. Priced printing to eliminate the middleman <various advertising companies> of huge profits, so that customers can enjoy the cheap printing products. 厂价印刷省去了中介商〈各种广告公司〉的丰厚利润，使客户更能享受到物美价廉的产品印刷。
英英解释
n.
1. someone who buys large quantities of goods and resells to merchants rather than to the ultimate cust
2. the performer in the middle of a minstrel line who engages the others in talk
3. a person who is in a position to give you special assistance
