If so, it should be possible to find clues about how human language evolved from grunts or gestures by observing the communication of our close primate relatives.

如果属实，那就应该有可能找到从观察模仿我们的灵长类近亲用叫声或手势交流而逐渐进化到人类语言过程的痕迹。

youdao

If so, it should be possible to find clues about how human language evolved from grunts or gestures by observing the communication of our close primate relatives.

果真如此的话，通过观察与我们亲缘关系最近的灵长类动物之间的沟通交流，就可能从中发现某些线索，证明人类语言到底是怎样从咕哝有声或者打手势进化而来的。

youdao

Usually people think of language first when they are talking about communication, while they seldom realize the role of nonlinguistic communication played in their intercourse.

通常人们谈到交际时首先想到是语言，而很少注意非语言交际在人们交往中的作用。

youdao

Speech-language pathologists diagnose and treat any disorder related to speech-language communication, with about 50% working in educational services and the rest employed by health care and social assistance facilities.

FORBES: 7. Speech-Language Pathologist

It's not just about a better understanding of communication over the ages, either, as the timeline of a language can also play a useful role in determining the order of pre-history events, such as the movement of populations over a continent.

ENGADGET: Alt-week 2.16.13: robo-rats, a young black hole and a computer that cannot crash