You can bet your bottom dollar that he'll be late.

他肯定会迟到。

《牛津词典》

This horse will win. I would bet my bottom dollar on it.

我敢拿一切来打赌，这匹马一定会赛赢。

youdao

Then he walked back to the man and gave him his bottom dollar.

然后他返回去，把这最后的一美元给了那个人。

youdao

He had spent his bottom dollar, his very last amount.

VOA: special.2009.10.04

Well, I bet my bottom dollar you have seen or used its services already this year.

FORBES: Count It Up: Coinstar Is On The Rise

John Kerry may win Ohio, but as yet nobody there is betting their bottom dollar on it.

BBC: For Florida in 2000, read Ohio in 2004.

"There's going to be litigation, you can bet your bottom dollar, " notes Kevin Healy, an environmental attorney in the New York office of law firm Bryan Cave.

FORBES: Climate