canvasser/ˈkæn.və.sɚ/名词游说(拉票)者Canvassers will go door-to-door on election day.拉票员将在选举日挨家挨户进行拉票。调查员Canvassers surveyed people from over 2,500 households.调查员对来自2500多个家庭的人进行了调查。想跟读,去练习