rooted to the spot
US /ˈruːtɪd tu ðə spɑt/
UK /ˈruːtɪd tu ðə spɑt/

1.
呆若木雞, 動彈不得
unable to move because of fear, surprise, or other strong emotion
:
•
She was so scared that she was rooted to the spot.
她嚇得呆若木雞。
•
He stood rooted to the spot, watching the car drive away.
他呆立原地,看著汽車開走。