一笔勾销
- na.cancel once for all
- 网络Clean slate; write off; wipe the slate clean

一笔勾销
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
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