dumb luckinformal something good that happens in an unexpected way, especially when it is not deserved 纯粹是运气〔尤指不配得到〕 It was just dumb luck that we found the place at all. 我们找到那地方纯粹是靠运气。
dumb luck• The cleanup of the oil spill was helped by good weather and a lot of dumb luck.
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