题目内容
In linguistics, ______ is focused on that how a speaker uses his speech organs to articulate the sounds.
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The initial sound in ______ is a velar stop.
In English, all the front vowels and the central vowels are ______ vowels.
The sounds that begin and end the words church and judge are voiceless and voiced ______, respectively.
If two sounds are in complementary distribution, they are ______ of the same phoneme.
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