她将第一笔投资的收益成功转化为更大的财富，不断利用每一笔回报进行再投资。

She kept ___parlaying her initial investment returns into larger sums by reinvesting each profit wisely.

他通过把三场篮球比赛串在一起下注，希望能获得更高的回报。

He hopes to win big by ___parlaying three basketball games into a single bet.