to waste money or supplies, or to waste opportunities by not using them to your advantage

They'll quite happily squander a whole year's savings on two weeks in the sun. 他们会心甘情愿地把全年的积蓄花掉，度两个星期的阳光假期。

Ireland squandered several chances, including a penalty that cost them the game. 爱尔兰队错失了几次机会，包括导致他们输掉比赛的一次点球。