So many, in fact, that each individual language contains only a subset of potential sound units, or phonemes.

事实上，其种类之丰富以至于每种语言只含有一种潜在音位子集。

Phonemes are the different sound units we use to make up words—some of which are unique to different languages.

音素是我们用来组成单词的不同声音单元——其中一些是不同语言所独有的。

You want to train the tongue, the cheeks, the lips, the whole mouth how to help you make these sound units. So exaggerate.

训练你的舌头、脸颊、嘴唇，能帮助你发出这些声音单位的整个嘴型。所以夸张一点。

Researchers trained the sophisticated artificial intelligence to recognize not individual words, but phonemes, or sound units like " ow" and " ah" that can ultimately form any word.

研究人员训练复杂的人工智能来识别的不是单个单词，而是音素，或最终可以形成任何单词的“ow”和“ah”等声音单元。