Definition
to require someone to pay a significant amount of money
使某人花费一大笔钱
Buying a new car can knock you back quite a bit.
买一辆新车可能会让你花不少钱。
The cost of this trip will definitely knock us back.
这次旅行的费用肯定会让我们花一大笔钱。
The repairs are going to knock me back a hefty sum.
修理费用将会让我花一大笔钱。