他不应该贬低同事的努力来抬高自己。

He shouldn't ___derogate his colleagues' efforts to make himself look better.

使用低质量的配件会降低这款手表的价值。

Using low-quality accessories will ___detract from the value of this watch.

他的行为明显偏离了公司的道德准则。

His actions clearly ___derogate from the company's ethical standards.