来自潘越的问题
英语语言学题A_________arevariantsofthesamephonemeindifferentphoneticcontexts.
英语语言学题
A_________arevariantsofthesamephonemeindifferentphoneticcontexts.


英语语言学题A_________arevariantsofthesamephonemeindifferentphoneticcontexts.
英语语言学题
A_________arevariantsofthesamephonemeindifferentphoneticcontexts.
allophones音位变体