Learn what "you must have been startled" means, when people say it, and how to use it naturally in English.

This means the speaker thinks the other person was suddenly surprised or frightened.
From The Pendleton Secrete, Episode 40
Someone guesses that another person was shocked or startled.
Use it to comment on someone’s reaction after a sudden event. It is polite and natural in everyday speech.
Scenes unlock real expressions as you watch
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