Break the bank 太贵，花钱太多
It only costs $2. That's not going to break the bank.
Rob a bank 抢银行
He was put into jail because he robbed a bank last month.
Bank account 银行账户
I opened a bank account yesterday at Bank of China.
Bank on sb/sth 指望，信赖
I don't think you can bank on Tom coming tonight—he's really unreliable.
Be laughing all the way to the bank
We'll be laughing all the way to the bank if this deal works out.