2.2. 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 Uh-Oh ˈʌoʊ。但，绝大多数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 ˈɑoʊ. But consonants almost always need to be attached to vowels to form syllables, and alone, they don't carry meaning.