汉语是我们的母语，也是世界上的一个大语种。

Chinese is our mother tongue and it's one of the main languages in the world.

youdao

外语课，可用于继续提高汉语或选修其母语以外的其他外国语种，或选修经商定的其他课程。

Foreign language class, which is useful to improve your Chinese or other selected foreign languages besides your mother tongue.

youdao

意大利语和西班牙语乃是源出于一个母语的同源语种。

Italian and Spanish are kindred languages with the same origin.

youdao

But there are many, many more websites coming up in different parts of the world They want to make sure that they address English-speaking audiences As well as their own audiences.

但更多的网页建立在,除了美国外的世界各地区,这些网页不仅仅想要,吸引英语语种的浏览者,也想囊括其母语的使用者。

麻省理工公开课 - 媒体、教育、市场课程节选