Failure to control the virus probably spells lower future incomes for millions of pupils.

未能遏制病毒传播可能会导致数百万学生未来收入下降。

They pay fees and sacrifice earnings to study, but see little boost in their future incomes.

这些学生支付学费并牺牲工作机会来学习，但这对他们未来的收入鲜有帮助。

But this quickly spiraled into debt that I thought could easily be paid back with future income.

但这很快就变成了我认为可以很容易地用未来收入偿还的债务。

Ultimately, there's no reason why space travel should be, in terms of future incomes, much more expensive than jet flight today.

最终，就未来收入而言，太空旅行没有理由比今天的喷气式飞机飞行昂贵得多。