And you may say " only" instead of long " O" , 'o (w) nly'.

你也可以说“only”，而不是长“O”，“O(w)only”。

Do you hear the difference? It's not 'onli', it's 'o (w) nly'.

你听出区别了吗？不是“onli”，而是“o(w) only”。