booby-trap

As well as making the explosion more reliable, this allowed military engineers to turn the fougasse into a booby trap.

绊索由合细线制成，一头系在燧发装置的扳机上。

Luke Medlin, who was sweeping the alley for booby traps as Marine Gunner John Daly covered him from behind when the Taliban struck.

他时正在扫除巷子里面的诱杀装置，班士兵袭击他的时候，海军陆战队的约翰·德掩护了他。