前後

around / from beginning to end / all around / front and rear

front / forward / ahead / first / top (followed by a number) / future / ago / before / BC (e.g. 前293年) / former / formerly

back / behind / rear / afterwards / after / later / post-

context / the surrounding words / same as 上下文

regardless of what's before or after (idiom); rushing blindly into sth