door knocker

US /ˈdɔːrˌnɑːk.ər/
UK /ˈdɔːrˌnɑːk.ər/
"door knocker" picture
1.

门环, 门扣

a device, typically metal, attached to a door and used for knocking on it to announce one's presence

:
She heard a loud bang on the door, but it was just the wind rattling the old door knocker.
她听到门上砰的一声巨响,但那只是风吹动旧门环的声音。
The antique door knocker was shaped like a lion's head.
那个古董门环是狮子头的形状。