gamble

创业总是一场赌博。

Starting a new business is always a ___gamble.

买这个地方是个大赌注，但似乎已经成功了。

Buying this place was a big ___gamble, but it seems to have paid off.

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.