How to treat the basic characteristics of modern Sino-Western trade

The basic characteristics of modern Sino-Western trade are as follows:

China's foreign trade in modern times was mainly labor-intensive and primary processing, and now it is gradually changing to fine processing, intelligence and high-end.

The ancient land trade between China and the West refers to the inland relay trade between Europe and Asia, which started from the second half of 1 millennium BC to 1 840 years ago, with the transshipment of China silk as the bulk.