The vowels found in languages can be compared with the cardinal vowels of IPA and described by reference to them.
各语言中的元音都可以与国际音标中的基本元音进行比较，并以其为参照进行描述。
The vowels found in languages can be compared with the cardinal vowels of IPA and described by reference to them.
各语言中的元音都可以与国际音标中的基本元音进行比较，并以其为参照进行描述。
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