By now it should be obvious that the necessary changes need not be painful.Not only does renewable energy save consumers money, it also creates new jobs and a new opportunity for businesses.

从目前看来，做出必要的改变未必是痛苦的。可再生能源不仅为消费者省了钱，还能创造就业，并为企业提供更多机会。

It should be obvious that the rate of interest cannot be a return to saving or waiting as such. For if a man hoards his savings in cash, he earns no interest, though he saves just as much as before.

很明显，利率不可能是储蓄或等待的回报。因为如果一个人把他的储蓄存成现金，他就不会赚取利息，尽管他的储蓄和以前一样多。