vowel sound

To pronounce ( a sound) with the lips in a flattened or neutral position. a vowel sound that starts near the articulatory position for one vowel and moves toward the position for another.

不圆唇发音靠嘴唇里扁平位置或中性位置来发（一个音）发声时，从一个原因的发声位置开始过渡到另一个元音位置的元音。

In this sentence, the vowel sound become reduced to a central vowel.

此句中这个元音弱化为中元音.

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。

Look at my lip-position when I pronounce this vowel sound.

我发这个元音时,请看着我的唇位.

A long vowel is a long sound as in the word'shoe ".

长元音即如“shoe ” 一词中的长音.

Note the use of the vowel sound in should and must when they are pronounced quickly.

注意should和must中快速发音时元音的发音.

The student was practising making a new vowel sound.

那个学生在练习一个新母音的发音.

An orinasal speech sound , such as a French nasal vowel.

在德语中这个元音双重元音化了.

Look at my lip position when I pronounce this vowel sound.

我发这个元音时请看我的唇位.

The salient district complementary distribution indicates that the force of the sound change from velar plosive initial before a high front vowel in the northern dialects to a alveolar affricate comes from outside influence rather than internal change.

这种明显的地域互补分布表明了北方汉语方言前高元音前面的舌根声母转变为舌面音的力量来自于外部的人文影响，而非内部语言音变。

The schwa is the most frequent vowel sound in English speech.

在英语中，中元音是最常用的元音。