他更喜欢正统医学，而不是替代疗法。

He prefers ___orthodox medicine to alternative treatments.

他们尝试了所有正统的方法来怀孕，但没有成功。

They tried all the ___orthodox methods to conceive a child, but without success.

在某些领域，正统的方法仍然受到高度重视。

In some fields, ___orthodox approaches are still highly valued.