在後

behind

to exist; to be alive / (of sb or sth) to be (located) at / (used before a verb to indicate an action in progress)

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

the best part of the show is yet to come / (with ironic tone) the worst is yet to come / you ain't seen nothin' yet

the mantis stalks the cicada, unaware of the oriole behind (idiom, from Daoist classic Zhuangzi 莊子|庄子[Zhuang1 zi3]); to pursue a narrow gain while neglecting a greater danger

when the mice drag a shovel, the biggest thing comes second / the tip of the iceberg / the cockroach principle