a rope or wire stretched tightly high above the ground, on which acrobats perform feats of balancing
(供杂技演员表演用的)绷紧的钢丝(或绳索)
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[as modifier]
a tightrope walker 走钢丝的演员
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figurative 〈喻〉he continues to walk a tightrope between success and failure .他依然处境艰难,胜负难料。
walk or perform on such a rope
(表演)走钢丝。