The purpose of my coming here is to inquire about possibilities of establishing trade relations with your company.
我此行的目的正是想探询与贵公司建立贸易关系的可能性。
So when a German buys something from a Japanese, or an Indian sells something to a Frenchman, they may all use English.
因此,当德国人从日本人那儿买东西时,或印度人把东西卖给法国人时,他们可能都用英语进行交流。