theory英文可数吗

theory是可数的，复数形式是theory，意思是理论，原理。

例句

The theories were demonstrated to be false.

这些理论已被证明是错误的。

The theory does not apply universally.

这个理论并非放之四海而皆准。

His theories are somewhat remote from reality.

他的理论有点儿脱离现实。

His theories have been debunked by recent research.

最近的研究揭穿了他的\'理论的真相。

The theory remains untested.

该理论仍未经过验证。

The theory has now been disproved.

这一理论现已证明是错误的。