中譯英？？我樂於接受別人批評，但要是事實！

I am glad to accept any comments that are true

你可以說成：Any comment is welcome providing that it is a fact.

I am glad accept the others to criticize, but if fact!

I accept only criticisms that tell the truth.

Your (critisize) opinion to me is always welcome, however, it must be a truth!