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to dig; to excavate; to hollow
to delve into
to dig up (e.g. vegetables)
(for two men) to have anal sex
子供たちが砂浜で穴を掘っていた。
The children were digging holes on the beach.
庭に木を植えるために穴を掘った。
I dug a hole to plant a tree in the garden.
考古学者が遺跡を掘り進めている。
Archaeologists are digging into the ruins.