Is correct to say "they put their life at risk"?

Sounds like a homework assignment.

What do you think it might be?

You need to at least try to come up with an answer.

They put their life at risk is a natural expression. Some more context would be helpful to see how best to change it.

For example in my country, in the jungle, the police officers have to fight against the traffic of marihuana.
And I'd like to use the phrase life-threatening in this context replacing the natural expression than you mencioned to me.

I think I could be like that. "The police officers have life-threatening everyday in the jungle to maintain a control of drugs".

Thanks in adva

You could say something like The police experience life-threatening situations every day in the jungle as they fight to control drugs.

"Life-threatening" is an adjective. It needs to come before a noun. Life-threatening situations, etc.

"Every day" is two words.

He got there four seconds ahead of me.

BarbaraPAHe got there four seconds ahead of me.

You would have beaten me to it if I'd stopped to proof-read and fix my typo.