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

1.
camminare sul filo del rasoio, essere in bilico
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.
Il governo cammina sul filo del rasoio tra crescita economica e protezione ambientale.
•
As a diplomat, he often has to tread a tightrope in international negotiations.
Come diplomatico, spesso deve camminare sul filo del rasoio nelle negoziazioni internazionali.