doorbells什么意思解释？

George didn't know which house on the street was Jane's so he began ringing doorbells hit or miss.乔治不知道简[珍妮]住在那条街上的哪栋房子里,因此他就东一家西一户漫无目的地按门铃.There were knobs and doorbells where one touch had covered another bef...

doorbells的音标：...