Of course,with signers,their first language has no written system at all, just hand gestures.

VOA: special.2011.04.13

He published a treatise that he had written earlier on grammar, inventing his own system for the understanding and the learning of the Latin language.

发表了一篇他之前写的关于语法的论文，在这篇论文中他创建了自己的一套理解和学习,拉丁文的体系。

耶鲁公开课 - 弥尔顿课程节选

Now, language is not the only thing in culture or nature that has this sort of combinatorial system.

语言并不是在文化或自然中,唯一拥有这种组合系统的事物

耶鲁公开课 - 心理学导论课程节选

The orthography is the written system and spelling of a language.

VOA: special.2011.04.13

Well, in any case, so language is a system of signs.

所以，语言是一个符号系统。

耶鲁公开课 - 文学理论导论课程节选

But with threats, a language barrier and fear of the legal system, victims often do not or are unable to seek help.

VOA: standard.2010.05.24

Now language is a system of signs.

语言是符号的组合。

耶鲁公开课 - 文学理论导论课程节选

It has over 700 different language groups, no national transport system to speak of and few government services that actually operate outside of the capital, Port Moresby.

VOA: standard.2009.04.04

Sometimes the basic unit is the phrase, but some other times the basic unit is the phoneme or if one's studying language as a system of writing it might be the syllable.

有时候基本单位是一个词组，有时候则是一个音素,也就是在写作的研究中的,一个音节。

耶鲁公开课 - 文学理论导论课程节选

So, we have the sound system of a language, the phonology.

语言拥有声音系统,也就是语音

耶鲁公开课 - 心理学导论课程节选