1. work loose
2. loosen
Loosen the screws and remove the lamp cover.
A few glasses of wine can loosen the tongue.
I use a spanner to loosen a nut.
When will you ever loosen your purse strings?
Your playing sounds a bit stilted. You have to loosen up your fingers.
3. to slack
to slack on the job
Anglais mot "obluzować"(to slack) se produit dans des ensembles:
Książka Filary Ziemi 2