be afraid of your own shadow

US /bi əˈfreɪd əv jʊər oʊn ˈʃædoʊ/
UK /bi əˈfreɪd əv jʊər oʊn ˈʃædoʊ/
"be afraid of your own shadow" picture
1.

杯弓蛇影, 膽小如鼠

to be easily frightened or to be very timid and nervous

:
After the accident, she started to be afraid of her own shadow.
事故發生後,她開始杯弓蛇影
He's always been a timid person, afraid of his own shadow.
他一直是个膽小的人,杯弓蛇影