theory可数吗?如果可数,怎么变复数啊?急等

theory是可数的，表示理论时有复数形式，复数是theories.

例句

His theories have been debunked by recent research.

最近的研究揭穿了他的理论的真相。

I looked forward to the exploration of their theories.

我期待着对他们的理论进行探讨。

Don\'t let yourself be distracted by fashionable theories.

别让自己被新潮的理论给分心了。

These theories are now largely discredited among linguists.

这些理论现已大多受到语言学家的质疑。

I accept his theories, but not without certain qualifications.

我接受他的理论，但并非毫无保留。

Over the years several similar theories have been put forward.

多年来几种类似理论被提了出来。