walk/tread a tightrope
US /wɔːk/tred ə ˈtaɪtroʊp/
UK /wɔːk/tred ə ˈtaɪtroʊp/

1.
走鋼絲, 如履薄冰
to be in a difficult situation where a small mistake could have serious consequences
:
•
The government is walking a tightrope between economic growth and environmental protection.
政府在經濟增長和環境保護之間走鋼絲。
•
As a diplomat, he often has to tread a tightrope in international negotiations.
作為一名外交官,他經常不得不在國際談判中走鋼絲。