verb记录,跟踪(进展或发展)
noun图表;航海图,星象图;(歌曲或唱片每周销售量)排行榜
verbto record or show the progress or development of somebody or something
nouna drawing that gives information about something
nouna map of the sea or the sky
nouna list of the songs or CDs that have sold the most in a particular week