跟单是与工厂有直接交流和沟通的一种最好的方式，也是了解产品的各个程序，

跟单是与工厂有直接交流和沟通的一种最好的方式，也是了解产品的各个程序，懂得产品的基本原理，掌握价格的构造，提高自己的议价能力的一个重要途径。

結果 (英文) 1:

With the single best way to have a direct exchange and communication with the factory, and also understand the process, understand the basic principles of the product, grasp the structure of the price, is an important way to improve their bargaining power.

結果 (英文) 2:

The documentary is one of the best ways for direct exchanges and communication with the factory, but also understand the various program product, understand the basic principle of products, to master the price structure, an important way to improve their bargaining power.

結果 (英文) 3:

With factory-direct and one of the best ways to communicate, understanding of each program, understand the principles of product, take control of price structure, an important way to improve their bargaining power.