무언가에 대해 골똘히 생각하거나 망설일 때 내는 소리.
Used to express reflection, contemplation, doubt, or hesitation.
예문:
"Hmm, I'm not sure if that proposal addresses all the risks involved."
"Hmm, let me think about the best route to take to avoid traffic."
"Hmm, that's an unusual way to solve the problem, but it might just work."