Hello, nice to meet you. By the way, nice shoes you have.
你好,很高兴见到你。 顺便提一下, 你的鞋子很漂亮。
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。