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1·He waved his hand, and, bingo, the card reappeared.

他挥了一下手，转眼之间，牌又出现了。

2·Since the stakes are usually a dollar a card, bingo is considered a low-risk game and thus poses no threat of economic difficulties of the players.

因为赌注通常是一美元一张卡，所以宾戈游戏被看作是危险性低的赌搏，因而不会给参加者造成经济上的威胁。