bookend

the narrative is bookended by a pair of incisive essays.

这篇叙述文头尾部分都有深刻的短论。

At either end of the slave coffle, like living bookends, were the Haydonites, Veidt and Sarna, hovering some few inches off the deck-plates.

在奴隶队列的两端，像活一样的，是海顿人维特和莎娜，悬浮在距地板几英寸高的地方。