on tenterhooks
US /ˈtɛntərˌhʊks/
UK /ˈtɛntərˌhʊks/

1.
焦急不安, 懸而未決
in a state of anxious suspense or expectation
:
•
We were all on tenterhooks waiting for the exam results.
我們都焦急不安地等待著考試結果。
•
The whole country was on tenterhooks during the election night.
在選舉之夜,全國上下都焦急不安。