万不失一
万不失一万不失一[wàn bù shī yī]1.■not one lost [missed] in ten thousand; no danger of anything going wrong; no risk at all; absolutely [perfectly] safe
万不失一万不失一[wàn bù shī yī]1.■not one lost [missed] in ten thousand; no danger of anything going wrong; no risk at all; absolutely [perfectly] safe
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