knocker

门环英释中释na piece of metal on an outside door of a house that you hit against the door to attract the attention of the people inside

1 door knocker,门环

1 what you long to know about a house when you put your hand on the knocker. .当你把手放到门环上时，你能有这般了解一整座屋子吗？

2 Le Cabuc runs to the door, which had a very massive knocker, and knocks..勒·卡布克跑到楼房门前，门上有个相当大的门锤，他提起便敲。