関連ワード:  what is computer for class 2    what is computer for class 2 pdf    what is computer for class 2 worksheet    what is computer for class 2 pdf notes    what is desktop computer for class 2    what is laptop computer for class 2    what is palmtop computer for class 2    what is computer definition for class 2    what is computer mouse for class 2    what is computer essay for class 2