普通的家用时钟一般只能设置一个闹钟时间，但很多人均需为工作日、周末、早晨、午休等不同时段设置不同的闹钟时间。--广东珠海　　曾向文-Ordinary household clock alarm clock can only set up a time, but a lot of people ought to be working days, weekends, morning, lunch and other periods of the clock in different time settings.- Zhuhai, Guangdong Province, to the text