商务英语讲座特约撰稿人蔡勇第四十讲合同合同是有关当事人经过协商达成的协议。合同是法律契约，通常需要用书面形式将各方的权利与义务明确地规定下来。但是广义地讲，合同也包括在商店购物时，或上街打车时，顾客与售货员之间，乘客与出租车司机之间的口头协议。一份有... The foremost contributor to the Business English Lecturer Cai Yong is the fortieth contract. The contract is an agreement reached through negotiation between the parties concerned. A contract is a legal contract. It is usually necessary to clearly specify the rights and obligations of all parties in written form. But in a broad sense, the contract also includes a verbal agreement between the customer and the salesperson, the passenger and the taxi driver when shopping in the store, or when taking a taxi to the street. A copy of...