1.
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。
2.
Comparison to Vowels in English and Mongolian Language and Their Connection with Consonants;
英语与蒙古语中元音的对比以及元音和辅音之间的发音关系
3.
Designating the vowel a as pronounced in bad or cat.
指如 bad或 cat中元音 a的发音.
4.
Most English vowel sounds which are not given weight in speech become reduced to a rather formless central vowel.
在言语中不重读的英语元音大部分被弱化成无形的中元音。
5.
To change(a consonant)into a vowel during articulation.
使发成元音在发音中变（辅音）为元音
6.
segmental phonemes
【语】分解音素指音节中的元音、辅音和半元音)
7.
neutral vowel
【语】中性元音(不重读的元音)
8.
This vowel diphthongized in Germanic.
在德语中这个元音双重元音化了。
9.
The English vowels / i:/ and / u:/ are close.
英语元音中的/ i:/和/u:/是闭元音.
10.
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。
11.
A single vowel articulated without change in quality throughout the course of a syllable, as the vowel of English bed.
单元音在一个音节的发音过程中不改变音质的单元音,如英文单词bed中的元音
12.
Being a vowel in an open syllable unchecked by a consonant, as the o in go.
自由元音的开音节中不被辅音阻碍的元音的，如o在go中
13.
Of or relating to vowels produced with part of the tongue close to the palate, as in the vowel of tree.
高元音的以舌的一部分抵硬腭发出的元音，例如在tree中的元音
14.
the short vowel in `pull' and the long vowel in `pool'
在pull一字中的短元音和在pool一字中的长元音.
15.
The Division Ⅱ Medial and the Amount of Vowels in Middle Chinese;
中古二等韵介音和《切韵》元音数量
16.
Produced with the front of the tongue in a forward position. Used of a vowel.
舌前元音舌前部，在向前位置形成的，在元音中用
17.
A compound vowel sound resulting from the succession of three simple ones and functioning as a unit, as(wou)in wow.
三合元音由三个单位的元音相连形成的复合元音，作为一个单元，如wow中的（wou音）
18.
Pronounced with the tongue near the palate, as the ee in meet.Used of vowels.
闭元音的舌靠近颚发出声音的，如ee在meet中。用于元音