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1 da/du ad. to undo, to untie; to come undone, to untie oneself
korapiloa askatu: to undo a knot
2 du ad. to liberate; to release, to set free; to let go/loose
nork askatu du txakurra?: who let the dog loose/off?
3 du ad. (Mat.) to solve
ekuazioak askatu: to solve the equations