A firefighter saved a little girl 's life at the expense of his life.
一个救火队员牺牲自己的生命来救一个小女孩的生命。
The U. S. is, after all, acting at the expense of its best customer.
毕竟，美国的行为让它最好的客户付出代价。
It 's too much of an expense for me to own a car.
对我来说，拥有一辆翐汽车的花费太大。
It 's too much of an expense for me to own a car.
对我来说，拥有一辆翐汽车的花费太大。
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