单词	tripwire
释义	tripwire /ˈtrɪpwʌɪə / noun 1A wire stretched close to the ground, working a trap, explosion, or alarm when disturbed and serving to detect or prevent people or animals entering an area: he brushed some leaves aside to reveal a small tripwire stretched between two trees... Then attach a tripwire to the dead animal with the other end attached to a loaded shotgun. She's devising a plan to lay a trap for them with tripwires and a lot of tin foil - apparently they like shiny things - but she doesn't have high hopes. He was a genius at creating special booby traps and tripwires, all sorts of custom-made devices designed to inflict maximum pain and damage. 1.1A comparatively weak military force employed as a first line of defence, engagement with which will trigger the intervention of stronger forces: if these peacekeeping efforts fail, they should have the function of a tripwire [as modifier]: the placing of tripwire forces on disputed borders... Why is the administration proposing to abandon the long-standing tripwire function of U.S. forces in the country? Moreover, the troop tripwire makes it America's problem. Replacing the American tripwire would be expensive for the country.
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