off the shelf

Từ điển Oxford Advanced Learner 8th

off the ˈshelf idiom
that can be bought immediately and does not have to be specially designed or ordered
•I bought this package off the shelf.
•off-the-shelf software packages
•Some courses can be bought off the shelf as self-contained study packages.
compare ↑off the peg ↑peg _n.
Main entry: ↑shelf_idiom