For example, if the customer mentioned in the example above has $150 in his savings account and attempts to transfer $100 to a different person while at the same time moving $100 to the checking account, only one of them can succeed.
例如，如果上述银行例子中的顾客在他的存款账户中有$150并尝试在同时将$100转账给另一个人和将$100转到支票账户，只有其中的一个行为能够成立。