Offer and acceptance
（重定向自Offeree）
Offer and acceptance are elements required for the formation of a legally binding contract: the expression of an offer to contract on certain terms by one person (the "offeror") to another person (the "offeree"), and an indication by the offeree of its acceptance of those terms. The other elements traditionally required for a legally binding contract are (i) consideration and (ii) an intention to create legal relations.