Children's songs are short poems with folk songs, which are mainly accepted by children. They are one of the oldest and most basic genre forms of children's literature. Children's songs are a kind of folk songs, which are distributed all over the country. Their contents reflect children's life interest, spread life and generate knowledge.

An alarm clock refers to a clock that sends signals to people at a specific time. The main function of an alarm clock is to wake a sleeping person or remind other things. Most alarm clocks use sound as a signal, and some use light, vibration or smell. Press the button on the alarm clock, the signal will stop, and some alarm clocks will stop automatically after a certain period of time.