She lay on her front and scrabbled about in the sand.

她趴在地上，在沙子里摸索。

And, when there was the occasional silvery waterfall, the metal cup would overflow with coins and the gambler would have to go down on her knees to scrabble about under the machines for a rolling coin.

而且，当偶尔有银色的瀑布流出时，金属杯中的硬币就会溢出， 赌徒不得不跪在机器下面摸索滚动的硬币。