trip wire
柯林斯词典
1. N-COUNT A tripwire is a wire stretched just above the ground, which sets off something such as a trap or an explosion if someone touches it. (如陷阱或爆炸装置的)绊线
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1. N-COUNT A tripwire is a wire stretched just above the ground, which sets off something such as a trap or an explosion if someone touches it. (如陷阱或爆炸装置的)绊线