The answer is simple: Space of an observer expands with increasing speed at the expense of remaining time reserves for the future.

答案很简单：一个观察者的空间以逐渐增加的速度膨胀，代价是为未来储存时间。

youdao

Measuring economic costs weighs the expense of both vaccination and illness against the net present value of the future earnings of someone who would otherwise die from the disease.

即通过接种疫苗和治疗的成本与那些若不给予治疗生命危在旦夕的人将来收入的净现值之比来估量经济成本。

youdao

Through the improvement to the expense financial service, the future revenue will transfer reasonably the part the current expense.

通过改进对消费的金融服务，把部分未来收入合理地转为当前消费。

youdao

In those periods it was deliberately investing in the future at the expense of current profits.

FORBES: Analytic myopia

That would benefit people who retire before 2040 at the expense of future generations.

ECONOMIST: China is beginning to face up to its pension problems

Pensioners would be better off, possibly at the expense of future taxpayers, who would bear the burden of repaying the government's more costly debt.

ECONOMIST: A call to set up a sovereign-wealth fund