Definition
Describes a situation where the outcome or completion of something is not determined until the very last moment.
到了最後關頭
The game was so intense; the winner wasn't decided until the very last second.
比賽非常激烈，直到最後一秒才決定勝負。
The project deadline is approaching quickly, and we will have to work down to the wire to complete it.
專案截止日期快到了，我們必須奮戰到最後一刻才能完成。
They were negotiating hard to reach an agreement down to the wire.
他們在最後一刻仍在努力談判以達成協議。