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.
in short supply: insufficient, not enough to meet demand.
Example:
The store manager was worried about the latest smart phones being in short supply for the holiday season.
carry through: execute a plan, put a plan into action.
Example:
I don’t know how Matthew ever made it to supervisor. He’s great at coming up with ideas, but he has problems carrying through.