It entailed the use of dirty coal as well as clean; undersea oil as well as terrestrial; deep gas as well as shallow; mediocre hydroelectric sites as well as good ones; and deforestation as well as sustainable fuelwood harvesting.

• 这意味着需要除了利用优质煤炭，还要利用劣质煤炭：除了利用陆上石油，还要利用海洋石油：除了利用浅层气，还要利用深层气：除了利用条件良好的水电站，还要利用条件一般的水电站；除了可承受的木柴采伐，还要破坏森林。