Cutting out commutes is better for the ozone layer than having millions of people sitting in traffic jams, spewing carbon monoxide, for hours on end.

相较于让数百万人堵在路上，连续数小时不停地喷涌一氧化碳，省掉通勤显然更有利于保护我们的臭氧层。

youdao

The famous footballers said that the secret of success was the time he spent in his youth practicing, just kicking away at a ball for hours on end, in an empty field with a few friends.

那位著名足球运动员说他成功的奥秘在于年少时花时间练习踢足球。那时候他总是同几个朋友一起在一块空地上，连续数小时不停地踢球。

youdao

I don't like to see children gluing their eyes to television set for hours on end.

我不愿看到孩子们连续好几个小时目不转睛地看电视。

youdao