A doorbell is a bell on the outside of a house which you can ring so that the people inside know that you want to see them.
英汉词典释义
n.
门铃
He refused to answer the doorbell.门铃响了,但他拒绝去开门。I heard the doorbell ring, and went to see who was there.我听见门铃响,就去看谁来了。She pressed on the doorbell.她按了按门铃。
英英词典释义
Noun
1. a push button at an outer door that gives a ringing or buzzing signal when pushed