一见如故

familiarity at first sight

one / single / a (article) / as soon as / entire; whole; all; throughout / "one" radical in Chinese characters (Kangxi radical 1) / also pr. [yao1] for greater clarity when spelling out numbers digit by digit

to see / to meet / to appear (to be sth) / to interview / opinion / view

to appear / also written 現|现[xian4]

as / as if / such as

as before / as usual / (to be) like old friends

happening / instance / reason / cause / intentional / former / old / friend / therefore / hence / (of people) to die, dead