bet one's bottom dollar on

例句：

1. 1. He decided tobet his savings on the stock market.
   他决定把积蓄都押在股市上。
2. 2.Betting on the outcome of the electionis illegal in this country.
   在这个国家，对选举结果下注是非法的。
3. 3.The gambler lost all his money afterbetting everything he had.
   这个赌徒把所有的钱都下完了，最后输得精光。