"n" in pinyin is pronounced as /ən/ when paired with "u", which shares the same pronunciation as "en"（恩）: zhun, tun, gun, lun... That's another rule. But in r

"n" in pinyin is pronounced as /ən/ when paired with "u", which shares the same pronunciation as "en"（恩）: zhun, tun, gun, lun... That's another rule. But in return you get 26 alphabets which majority of people on planet recognizes, instead of zhuyin which is only used in Taiwan and some Taiwan-related schools overseas.