Warning: file_put_contents(/home/www/wwwroot/tjuzi.com/cache/a4465383d29e2c03acb71bf281bf1e8f.txt): failed to open stream: No space left on device in /home/www/wwwroot/tjuzi.com/index.php on line 55 front extreme position是什么意思，front extreme position的翻译，front extreme position音标、读音、用法和例句_橘子化妆朗文词典
A cardinal vowel is a vowel sound produced when the tongue is in an extreme position, either front or back, high or low. 当舌头位于极端的位置，发出的元音就是定位元音，不论位置的前后或高低。