在最后一刻;紧要关头;恰是时候
牛津电影里 100%
at the very last moment; just in time before sth bad happens
Just in the nick of time. Now we'll get justice.
Go? Why, you just got here. In the nick of time, too.
释义来自《牛津高阶英汉双解词典》第 9 版