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In his research paper, Dr. Frosh, medical director of the PWC, distinguishes mood swings, which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis. C.between mood swings, which may be violent without being grounded in mental disease, and genuine manic-depressive psychosis
后面OG的解释说"distinguish A from B"是不对的,只有"distinguish between A and B".而且说their应该被省略。 请教:disntinguish A from B为什么不对?字典里面也查得到啊。然后为什么their一定要去掉? |
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