on the nose
准确地；精确地；恰好；正好
口语·强调时间或数量精确
英文释义
exactly right; precise; to the point
例句
The train arrived at 3:00 on the nose, just as scheduled.
典故来源
可能来自拳击或赛马术语，指击中鼻子或恰好到达终点，强调精确性。