a rope or wire that is stretched tightly high above the ground and that performers walk along, especially in a circus （尤指馬戲團表演用的）繃緊的繩索，繃緊的鋼絲 a tightrope walker 走鋼絲演員
Oxford Collocations DictionaryTightrope is used before these nouns:- walk
Idioms
tread/walk a tightrope
to be in a difficult situation in which you do not have much freedom of action and need to be extremely careful about what you do 身處困境；如履薄冰 The government is walking a difficult tightrope in wanting to reduce interest rates without pushing up inflation. 政府想在不推高通脹的情況下降低利率，這是在走一條艱難的鋼絲。