1、Essencially, theory is an abstract, symbolic representation of what is conceived to be reality.
實質上，理論被認為是現實的抽象和符號表示的一種表達！

2、Essentially a theory is an abstract symbolic representation of what is conceived to be reality.
理論在本質上是對熟悉了的現實的一種抽象和符號化的表達。

3、Until the 1960s, symbolic representation of language was thought to be uniquely human.
在上世紀六十年代以前，語言的符號表征一直被視為是人類的專利。

4、Essentially, a theory is an abstract, symbolic representation of what is conceived to be reality.
理論在本質上是對了解了的實際的一種抽象和符號化的表達。

symbolic representation翻譯