Andy, oh my God. I can't believe it. What are you doing here? I thought you're in Singapore.
安迪,我的天,竟然在这里遇见你。你在这里干什么?我以为你在新加坡。
Knowledge began to increase as soon as the thoughts of one individual could be communicated to another by means of speech.
人一旦能用语言同别人交流思想,知识的积累便开始了。