Warning: file_put_contents(/www/wwwroot/zidian/diubi.cn/cache/dd31d43d1f36ebb43830f316ef5c81fd.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/diubi.cn/index.php on line 59 front extreme position例句_front extreme position英汉例句_front extreme position双解例句_果味酸柯林斯词典
A cardinal vowel is a vowel sound produced when the tongue is in an extreme position, either front or back, high or low. 儅舌頭位於極耑的位置，發出的元音就是定位元音，不論位置的前後或高低。