"Get at something" means to reach somewhere,like: I can't get at the sweets.
Is it used a lot of times to mean " I can't reach there.".
Like: The blackboard has been put too high,so can I use:
I can't get at the top of the board.
Or
I can't reach the top of the board.
So what should be used:"reach/get at"? Can only "get" be used to
Thank you:)