idiomused inexpressionsthatrelateto beingabletoseethedifferencebetween two verysimilarthings orpeople:哪个是哪个(用于区分两个相似的人或物时)For the first fewmonthsthebabieslookedsoalikeI couldn'ttellwhich was which.头几个月里婴儿们长得都很像,以至于我分不清哪个是哪个。SMART Vocabulary: related words and phrasesDifferent and difference
altered
alternative
anomalous
another
anything
dissimilar
dissimilitude
distinct
distinction
distinctive
non-typical
non-uniform
non-uniformity
nonequivalence
nonequivalent
variant
variation
varied
various
various and sundryidiom
See more results ?(Definition ofwhich is whichfrom theCambridge Advanced Learner's Dictionary & Thesaurus? Cambridge University Press)
which is which| American Dictionary
which is which
idiomeachpersonor thingseparately:Thetwinslookso muchalikeI’msurprisedanyone cantellwhich is which.(Definition ofwhich is whichfrom theCambridge Academic Content Dictionary? Cambridge University Press)#https://dictionary.cambridge.org//dictionary/english/which-is-which##