Languages in East Asia tend to have tonal vowels, and those of the north-eastern Caucasus are known for consonantal complexity: Ubykh has 78 consonant sounds.
东亚的语言往往有带声调的元音，而东北高加索地区的语言以辅音复杂而闻名：尤比克语有78个辅音。
At that time, consonantal groups were often simplified.
当时，辅音群往往被简化。
A word or group of words difficult to articulate rapidly, usually because of a succession of similar consonantal sounds, as in Shall she sell seashells?
