vowel / consonant

 

vowel

a speech sound produced by humans 

when the breath flows out through the mouth 

without being blocked by the teeth, tongue, or lips

母音

consonant

one of the speech sounds or letters of the alphabet that is not a vowel. 

Consonants are pronounced by stopping the air from flowing easily through the mouth, 

especially by closing the lips or touching the teeth with the tongue.

子音；子音字母

https://dictionary.cambridge.org/zht/%E8%A9%9E%E5%85%B8/%E8%8B%B1%E8%AA%9E-%E6%BC%A2%E8%AA%9E-%E7%B9%81%E9%AB%94/vowel

https://dictionary.cambridge.org/zht/%E8%A9%9E%E5%85%B8/%E8%8B%B1%E8%AA%9E-%E6%BC%A2%E8%AA%9E-%E7%B9%81%E9%AB%94/consonant