But the answer doesn 't lie in making energy scarcer and more expensive !

但解决问题的答案不是把能源变得更稀缺更昂贵！

It also made the remaining ad time scarcer , and thus more valuable .

这也使得剩余的广告时段变得越发稀缺，也就越发昂贵。

Lovers of thumping music and human sweat are growing scarcer .

喜欢重金属音乐和火爆音乐的人越来越稀少。

Yet such places are growing scarcer .

然而这样的地区越来越少。

Infantry regiments tend to recruit from poor areas where jobs are scarce and a-levels scarcer .

皇家步兵军团倾向于在工作机会匮乏而好的工作机会更匮乏的贫困地区招人。