翻譯 1.3

As such resources are depleted, human ingenuity
can often find substitutes. For example, during this
century a mix of renewable energy resources such as
wind, the sun, flowing water, and the heat in the
earth’s interior could reduce our dependence on nonrenewable
fossil fuels such as oil and coal. Various types
of plastics and composite materials can also replace certain
metals.But sometimes there is no acceptable or affordable
substitute.
這些能源被耗盡 人類的聰明才智通常通常可以找到替代能源
在本世紀期間可再造能源資源的混合例如風、太陽、流動的水和在地
球內部的熱能減少我們的對不可更新的礦物燃料的依賴性例如石油和煤炭。
塑料和合成材料的各種各樣的類型可能也替換某些金屬。
可是現階段沒有可以令人接受而且負擔的起的替補能源