morph & allomorph 区别?

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morph语言学中的语子
allomorph语言学中的音素变体
Morph:the phonetic realization of a morpheme.
Allomorph:the phonetic variant of a morpheme in a particular language.
Three features:A.all allomorphs should have mon meaning;
B.all allomorph should be in plementary distribution;
C.allomorphs which share the mon meaning should occur in parallel formation.