买一辆更大的车被证明是物有所值的。

Buying a bigger car has proved to be well worth the ___expense.

我们刚花了大价钱建了一个新车库。

We've just had a new garage built at great ___expense.

那时候我们负担不起一辆新车的费用。

We couldn't afford the ___expense of a new car at that time.