on a knife-edge
US /ɒn ə naɪf-ɛdʒ/
UK /ɒn ə naɪf-ɛdʒ/
1.
岌岌可危, 处于危急关头, 如履薄冰
in a difficult, dangerous, or uncertain situation
:
•
The negotiations were on a knife-edge for days.
谈判多日来一直处于危急关头。
•
The future of the company is currently on a knife-edge.
公司的未来目前岌岌可危。