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speech-rate : x-slow | slow | medium | fast | x-fast | slower | faster | number
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x-slow :’Â80¦r/¤ÀÄÁ
slow :’Â120¦r/¤ÀÄÁ
medium :’ÂÀq»{­È¡C180-200¦r/¤ÀÄÁ
fast :’Â300¦r/¤ÀÄÁ
x-fast :’Â500¦r/¤ÀÄÁ
slower :’®ھڷí«eªº³t«×¨C¤ÀÄÁ´î¤Ö40­Ó¦r
faster :’®ھڷí«eªº³t«×¨C¤ÀÄÁ¼W¥[40­Ó¦r
number :’¾ã¼Æ¡C«ü©w¨C¤ÀÄÁµo­µ¦r¼Æ
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strong { speech-rate: fast }