大穴， おおあな

1. large hole 2. big deficit, heavy losses 3. long-shot win (in horse racing, etc.), big winnings (on a long shot), a killing (made from a bet)

tbd

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音读: タイ   ダイ  

训读:おお.きい  -おお.いに  おお-  

日检:4 grade:1 笔画数:3 部首:37

音读: ケツ  

训读:あな  

日检:1 grade:6 笔画数:5 部首:116