One prevalent theory was " peak oil . "

一个盛行的理论是“石油峰值理论”。

Officemax told analysts this summer that its hoped-for return to peak operating margins has to be slowed down .

今夏，OfficeMax告诉分析人士，预期中重返经营利润率高峰的目标可能不得不延后了。

It discloses holiday shipments , but only on the peak day and not for the entire season .

它公布假日季的发货量，但只限高峰日数据，不是整个假日季。

Unemployment has fallen sharply from a peak of 8 % in 2009 to around half that today .

失业率也从2009年的峰值8%大幅下降到如今的4%左右。

Pessimistic predictions had that either the peak had already occurred or that it would occur shortly .

悲观的预计认为，这个峰值要么已经出现，要么很快就会来临。