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...
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...
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