We have come to relaize that only by keeping on learning can we keep up with the advancing society.

“only + 状语”放在句首时，主谓需要倒装。

这句话就是：We have come to relaize that we keep up with the advancing socienty only by keeping on learning.

当含有否定意义的词或短语放在句首时，要倒装。这类词包括：

not, never, neither, seldom, little, nowhere, hardly, scarcely, rarely, no longer, not until, at no time, by no means, on no account, in no case, under no circumstances, on no account, not only … but also…

呵呵 就是些倒装句 分析透了没什么