在谈论金融方面的话题时，如果有人被要求 “dig deep”，意思就是让这个人 “尽力寻找或付出额外的努力凑够一笔钱，倾力出资”。短语 “dig deep” 也可以用来表示 “在身体或精神上竭尽全力地去做一件困难的事情”。

例句
The parents were asked to dig deep and help fund a new swimming pool for the school.
家长们被要求慷慨解囊，以资助学校建一个新的游泳池。

We had to dig deep to find enough money to pay a deposit for our new car.
我们不得不 “掏光腰包”，才够付新车的定金。

To make it to the summit of the mountain, we had to dig deep and find extra energy to help get us there.
当时，我们不得不尽力找到额外的精力以支撑我们走到山顶。