by contrast
prep.相反
in contrast
prep.与此相反,相比之下
用法相同
by contrast对比起来,相比之下。
例子:By contrast, Mary is much diligent than Tom.相比之下,玛丽比汤姆勤奋得多。
常用短语in contrast with/to和……形成对比,比较起来,后面接名词。
例子:In contrast with their systems, ours seems very old-fashioned.与他们的制度相比,我们的显得太陈旧了。