B: A contract is an agreement which is binding on both parties mutually. A contract might be formal or informal. oral or written. An implemented contract is one which has been fully executed by both sides; an executive contract is one which is going to be performed. They are enforceable by laws. and any pariy who defaults the contract may be sued and forced to make compensation.
A: What are the purposes of contracty?
B: In an ordinary contract. the objective of a contract might be relatively simple , indicating the description of commodity price , quantity terms of payment and etc.
A: When we draft a contract. which points should we pay specia attention to?
B: Well. first. make meaning clear by using concise. forma language. Second. describe accurately the exact requirement. Finally , state clearly the permissible variation in quantity.
首先，通过清楚的正式语言来表明意思，其次准确描述要求最后，明 晰地陈述可以允许的数量上的变动.内容来自 听力课堂网：http://www.tingclass.net/show-9495-339521-1.html