in a way that hits a target without failing

The ball went unerringly into the hole. 球不偏不倚地进了洞。

He stands on the training ground, pinging shots unerringly past the poor young goalkeepers. 他站在训练场上，准确无误地将每个球越过可怜的年轻守门员打进球门。

in a way that is always accurate or good, never failing or making a mistake

The writing is razor-sharp and unerringly intelligent. 文笔犀利，睿智绝顶。

The standard of music is unerringly high. 音乐水平登峰造极。