Every Saturday I’ll give you a couple of idioms to learn. An idiom is a saying or phrase whose meaning cannot be taken from the literal meanings of the words.
cold call: call a potential customer whom you’ve never met
Example:
If you want to be a successful salesman, you need to cold call to build your client base.
on hand: in stock, readily available
Example:
Check the supply cabinet to see if we have any business cards on hand.