题目内容
The word ‘childish’ contains two ---------.
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______ modify the meaning of the base , but usually do not change the part of speech of the original word.
The word ‘labiodental’ contains two _____.
------------ change the part of speech of the root, but usually do not change the lexical meaning of the original word.
Morphemes that can add “grammatical meaning”(such as agreement, tense, voice of the verb and person, number of the noun) of the wordare called ________ morphemes.
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