Only to recognize our national civilization and advocate it can we have a better well-round development. 不可以。不定式在句首一般表示 “目的”,而你的汉语意思是表达“方式”。不定式前加 only,可以表示出乎意料的结果,与句意不符,而且不可以放在句首。所以,only to do... 为错误。改为:Only by doing....(方式状语)。 Only by recognizingour national civilization and advocating it can we have a better well-round development.