> liu" should be pronounced "liou" and "shui" should be pronounced "shuei" This is nuanced: in some cases it’s omission for brevity [1] and in other cases it’s

> liu" should be pronounced "liou" and "shui" should be pronounced "shuei" This is nuanced: in some cases it’s omission for brevity [1] and in other cases it’s how the phonemes sound 100 years ago [2]. And if you pronounce them fast enough there isn’t much difference. The omitted diaeresis is certainly for brevity, although using v is more common to me. [1]: https://www.zhihu.com/question/26010099 https://www.zhihu.com/question/26010099 [2]: https://www.zhihu.com/question/313646560 https://www.zhihu.com/question/313646560