电子商务用英语可以说作"e-commerce"或"electronic commerce"。这个词的来源是由 "electronic" 和 "commerce" 拼接而来，"electronic" 意为"电子的"，"commerce" 意为"商业活动"。

例句：

E-commerce has revolutionized the way we shop. (电子商务已经彻底改变了我们购物的方式。)

The rise of e-commerce has made it easier for consumers to compare prices and find the best deals. (电子商务的兴起使得消费者更容易比较价格和寻找最优惠的产品。)

E-commerce allows businesses to reach a global audience and sell their products and services online. (电子商务使企业能够向全球受众销售他们的产品和服务。)