You know 'clock' – you look at it to check the time, it can be analogue or digital and you see them on the walls in buildings! There are some English phrases with the word 'clock' – learn some of them ...

A famous group of experts have warned that the world is the closest it has ever been to disaster. They’ve set the Doomsday Clock at 85 seconds to midnight. The Doomsday Clock was developed by the ...