The linguist Zellig Harris (he was Noam Chomsky's mentor and doctoral adviser) drew an important distinction between imitation and repetition. You can imitate the sound of anyone saying anything, even in a language you know nothing about, and you might even do it quite well, but you can only repeat something in a language that you know. When you repeat, you use the sound system (or at least, you can use it) in your own usual way. You know the phonemes of the language, and you know what is just linguistically insignificant low-level phonetic detail that you don't need to replicate. You know which utterance in your language you're repeating, and your target is to say that, and you have some license about doing it in your own voice, your own pronunciation of the language. It's not at all clear that Alice, the aggressive engineer in the Dilbert strip, has got this right:
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