Cancer Vaccine Hailed by Leading COVID Scientists

Hail is a verb and it means to praise or approve a person or an achievement. It's this technology that could solve or crack the problem of cancer. Can we use crack in any other way like this? Yeah, so we can talk about the police cracking a case. They solve the crime. Or a detective like Sherlock can crack a code. So that means he finds a solution. He works out what the code means. Let's have a look at our next headline. This one's from the Evening Standard. Cancer vaccine being hailed by leading COVID scientists. And it's the scientists themselves who are praising themselves. Exactly.