mindmap root((范围)) range is a general term indicating the extent of one's perception or the extent of powers, capabilities, or possibilities: the entire ~ of human experience. gamut suggests a graduated series running from one possible extreme to another: a performance that ran the ~ of emotions. compass implies a sometimes limited or bounded extent of perception, knowledge, or activity: your concerns lie beyond the narrow ~ of this study. sweep suggests extent, often circular or arch-shaped, of motion or activity: the book covers the entire ~ of criminal activity. scope is applicable to a predetermined and limited area of activity that is somewhat flexible within those limits: as time went on, the ~ of the investigation widened. reach suggests an extent of perception, knowledge, ability, or activity attained to or experienced by stretching out: a goal well within ~. orbit suggests an often circumscribed range of activity or influence in which forces work toward accommodation: within that restricted ~ they tried to effect social change.