Question

一笔勾销[yī bǐ gōu xiāo]1.■cancel once for all; all canceled; abolish at one stroke; all that's past and done with; be blasted at one stroke; cancel by a stroke of pen; clean [wipe off] the slate; invalidate by crossing off [blotting out]; line through; pass a wet sponge over; negate totally and indiscreetly; scratch off [cancel] the account; wipe out; write off at [in] one stroke; write off once and for all:cancel all debts;前账一笔勾销It's time we wrote off all our old scores!我们的旧账可以一笔勾销！