若有所失

as if one had lost something (idiom) / to look or feel unsettled or distracted / to feel empty

to have; there is / (bound form) having; with; -ful; -ed; -al (as in 有意[you3 yi4] intentional)

actually / place / classifier for houses, small buildings, institutions etc / that which / particle introducing a relative clause or passive / CL:個|个[ge4]

to seem / like / as / if

somewhat / to some extent

to lose / to miss / to fail