When my girlfriend rings me out of the blue, I'm in a good mood for the rest of the day.
我突然接到女朋友的电话,接下来的一整天我的心情都很好。
Then, instead of having someone answering the phone all day, people can ring up the railway station and listen to a tape recording of the information.
然后,人们可以打电话到火车站,从录音电话中获取信息,而不要安排一个专人整天接电话。