The development and expansion of a business depends on customers. Needless to say no customer, no business. The establishment of business relations is the fundamental step in foreign trade and in international exchange.
企业的发展和扩张取决于客户。毋庸置疑，没有客户，就没有业务。建立商业关系是对外贸易和国际交流的基本步骤。
