根究

Children always dive to the bottom of a subject.

们对问题总是追根究底的。

There are some mischievous and prosaic people who carp and calculate at every detail of the romancer.

有些刁钻促狭，迂腐愚蠢的人，喜欢吹毛求疵，对小说家的每个细节都要追根究底。

The poems of this phase had generally a narrative thread that was reduced at times to a shadow-and they rambled gracefully, argumentatively, variously.

这阶段的诗，般有条有时谈到只剩点影的叙事的线索，这些诗就是这样优雅庄重地，追根究底地，变幻多端地抒写下去。

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，来探究语言起源的心理机制，才能把握语言的历程。