Zhè cì gǎigé qǔdé le hěn dà chéngjì, dàn wúyōng-huìyán, yě dàilái le yìxiē xīn wèntí.
The reform achieved a great deal, but there is no denying that it also brought some new problems.
Tips
usage
Formal written style, used to open an unwelcome truth. The usual spelling today is 毋庸讳言, with the same reading and meaning: 无庸 is a variant of 毋庸 "no need to". In speech, say 说实话 "to be honest" instead.