Notes

[1] While e-business refers to more strategic focus with an emphasis on the functions that occur using electronic capabilities, e-commerce is a subset of an overall e-business strategy.

本句中，While e-business refers to more strategic focus with an emphasis on the functions that occur using electronic capabilities是一个让步状语从句。在该从句中，that occur是一个定语从句，修饰和限定functions。

[2] This is unlike business-to-consumer (B2C)which involves a business entity and end consumer, or business-to-government (B2G)which involves a business entity and government.

本句中，which involves a business entity and end consumer是一个定语从句，修饰和限定business-to-consumer (B2C)。which involves a business entity and government也是一个定语从句，修饰和限定business-to-government (B2G)。

[3] The transactions that lead to the shoes being available for purchase, which is the purchase of the leather, laces, rubber, etc. as well as the sale of the shoes from the shoemaker to the retailer, will be considered (B2B) transactions.

本句中，The transactions是主语，will be considered (B2B) transactions是谓语。that lead to the shoes being available for purchase是一个定语从句，修饰和限定The transactions。which is the purchase of the leather, laces, rubber, etc. as well as the sale of the shoe from the shoemaker to the retailer是一个非限定性定语从句，对The transactions that leads to the shoes being available for purchase进行补充说明。

[4] A common example is the online auction, in which a consumer posts an item for sale and other consumers bid to purchase it.

本句中，in which a consumer posts an item for sale and other consumers bid to purchase it是一个非限定性定语从句，对the online auction进行补充说明。