The term e-commerce refers to all commercial transactions conducted over the Internet, including transactions by consumers and business-to-business transactions.

电子商务是指通过互联网进行的所有商业交易，包括消费者交易和企业对企业交易。

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Conceptually, e-commerce does not differ from well-known commercial offerings such as banking by phone, "mail order" catalogs, or sending a purchase order to supplier via fax.

从概念上讲，电子商务与众所周知的商业服务并无不同，后者的服务包括像电话银行、“邮购”目录，或通过传真向供应商发送采购订单等。

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When you publish anything with your E-mail address in it, one major concern is unsolicited commercial E-mail, or spam.

当您发布任何含有您电子邮件地址的信息时，一个主要问题是多余的商业电子邮件或垃圾邮件。

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This information is often sold to spammers, or senders of unsolicited commercial e-mails.

CNN: Privacy groups ask FTC to close e-mail loophole

Although of course we must remember that his crime was not sending unwanted commercial e-mail, which is permitted if not positively encouraged as a way of using the net for marketing purposes.

BBC: NEWS | Technology | Data safety at top of the agenda

But defining "unsolicited commercial e-mail" is tricky.

FORBES: Side Lines