人类起源学,人类起源,人类发生
After studying the mental mechanism of language source and evolution through exploring the "past" of anthropogenesis and its development, we can grasp the process of language evolution. 只有通过对人类起源及发展的“过去”的寻根究底，来探究语言起源与进化的心理机制，才能把握语言进化的历程。
