There's a bus every hour on the hour.

每小时整点有一班公共汽车。

《牛津词典》

During this war in the Persian Gulf, NPR will have newscasts every hour on the hour.

在这场海湾战争期间，美国国家公共广播电台会进行整点新闻报道。

《柯林斯英汉双解大词典》

On the hour-long drive home, nobody said a word.

在开车回家的一小时车程中，一家人一言不发。

youdao

Guille Franco sent a flick against an upright on the hour as Villarreal provided stubborn resistance.

BBC: Man Utd 0-0 Villarreal

And, on the hour mark, Vucinic turned provider again for Toni to head home his second.

CNN: Ronaldinho hat-trick sees Milan close gap

Smartly-dressed young executives devouring business manuals land at its airport on the hour, every hour.

ECONOMIST: Organised crime in Mexico