舌面后部抬起构成的一组元音。发音时舌头后缩，舌尖向下，舌面后部对着软腭抬起back vowel

• 后元音从喉咙处发音。

  Back vowels are produced in the throat.

• 那些名字发音里面带“前元音”的男士的得分，要比名字里面带“后元音”的得分高。

  The scores of the men with front vowels in their names are higher than those with back vowels in their names.