06.辅音（1）－[p]和[b]、[t]和[d]、[k]和[g]

发音要领.docx 11.37 KB docxcon_voiceless_6.mp4 11.02 MB mp4con_voiceless_6-[θ].pdf 24.67 KB pdfcon_voiced_6.mp4 13.75 MB mp4con_voiced_6-[ð].pdf 24.39 KB pdf

con_voiceless_3.mp4 15.29 MB mp4con_voiceless_3-[ʧ].pdf 23.38 KB pdfcon_voiced_3.mp4 15.29 MB mp4con_voiced_3-[ʤ].pdf 24.70 KB pdf

发音要领.docx 11.42 KB docxcon_voiceless_8.mp4 22.66 MB mp4con_voiceless_8-[ʃ].pdf 24.74 KB pdfcon_voiced_8.mp4 7.04 MB mp4con_voiced_8-[ʒ].pdf 24.39 KB pdf