everyone-can-use-english/1000-hours/sounds-of-american-english/2.2-consonants.md

3.2. 辅音（Consonants）

地球上的所有语言都一样，在自然语流中，辅音不会单独存在。单独的元音，可以构成音节，也可以构成或者表达意义。比如，ah /ɑː/, oh /oʊ/，或者 O'Oh /ˈɑ·oʊ/。但，辅音必须依附于元音才能构成音节，并且，单独的辅音也不能构成意义。

All languages on Earth follow a similar pattern: in the flow of natural speech, consonants never stand alone. Isolated vowels, however, can form syllables and convey meaning. For instance, you have sounds like ah /ɑː/, oh /oʊ/, or O'Oh /ˈɑ·oʊ/. But consonants need to be attached to vowels to form syllables, and alone, they don't carry meaning.