trip-wire

n wire stretched close to the ground, which works a trap or warning device, etc when a person or an animal trips against it （陷阱或报警装置的）绊索, 绊网.

trilateral, trilaterally, trilby, trilingual, trill, trillion, trillionth, trilobite, trilogy, trim, trimaran, trimmer, trimming, trinitrotoluene, trinity, Trinity Sunday, trinket, trio, trip, trip sb. up, tripartite, tripe, triple, triplet, triplicate, triply, tripod, tripper, tripping, trippingly, triptych, trisect, trisection, trite, triumph, triumphal, triumphant, triumphantly, triumvirate, trivet,