既有今日何必当初 jì yǒu jīn rì hé bì dāng chū

already; since; both... (and...)

to have; there is; there are

now; this (day, year etc); the present time

day; date, day of the month; sun

what; how; why

must; necessarily; certainly

to be; to act as; should

(at the) beginning; at first; first