开掘

to excavate / to dig out / fig. to investigate (in an archive)

to dig; to excavate / (fig.) to explore (archival materials) and unearth findings

to open / to start / to turn on / to boil / to write out (a prescription, check, invoice etc) / to operate (a vehicle) / carat (gold) / abbr. for Kelvin, 開爾文|开尔文[Kai1 er3 wen2] / abbr. for 開本|开本[kai1 ben3], book format

to dig