机器翻译的进来拿20分，要快~只要翻译了就选你做答案

Electronic commerce, usually is refers to is from all over the world the widespread commercial trade activity, under the Internet open network environment, based on the browser server application way, the round turns does not seek a meeting carries on each kind of business activity, realizes between consumer's on-line shopping, merchant's on-line transaction and the online electronic payment as well as each kind of commercial activity, the transaction activity, the finance activities and the related comprehension service one kind of new commercial operation pattern. Is divided into generalized and the narrow two kinds. Generalized electronic commerce defines as, uses each kind of electronic tool to be engaged in the commerce or the activity. These tools including from primary telegram, telephone, broadcast, television, facsimile to computer, computer network, to modern systems and so on NII, GII and Internet. Narrow sense electronic commerce defines as, is mainly engaged in