rearview mirror

US /ˈrɪr.vjuː ˌmɪr.ər/
UK /ˈrɪr.vjuː ˌmɪr.ər/
"rearview mirror" picture
1.

後視鏡

a mirror in a vehicle that allows the driver to see the road and traffic behind

:
He checked his rearview mirror before changing lanes.
他變道前看了一眼後視鏡
The police car appeared suddenly in my rearview mirror.
警車突然出現在我的後視鏡裡。