The system is divided into five levels, namely, system management, training carrier, training form, training content and training object.

体系分为五个层次，分别是体系管理层、培训载体层、培训形式层、培训内容层和培训对象层。

youdao

As a kind of social activity to understand the symbols, reading and its style change with the development of media, the carrier of language and symbol, and the object of reading activity.

作为人从符号中获得意义的一种社会实践活动，阅读随着语言载体及阅读对象，也就是媒介的变化而不断变化着。

youdao

Further more, it can be applied on any rotary object and turn it to be an advertisement carrier.

并且可以应用于一切可旋转物体，将其作为广告载体。

youdao

For example, one word in the native language Carrier spoken in British Colombia means "he gives me an object like the fruit blueberries."

VOA: special.2009.12.02