他在一场赛马比赛中赌掉了一生的积蓄。

He ___gambled away his life savings on a single horse race.

许多人赌掉财富，希望快速致富。

Many people ___gamble away their fortunes in the hope of quick riches.

企业家经常在创新但未经证实的想法上赌上大笔资金。

Entrepreneurs often ___gamble large sums of money on innovative but unproven ideas.