Definition
to require someone to pay a significant amount of money
使某人花費一大筆錢
Buying a new car can knock you back quite a bit.
買一輛新車可能會讓你花不少錢。
The cost of this trip will definitely knock us back.
這次旅行的費用肯定會讓我們花一大筆錢。
The repairs are going to knock me back a hefty sum.
修理費用將會讓我花一大筆錢。