canvass
英 ['kænvəs]
美['kænvəs]
	    - vt. 细究;彻底检查;向…拉票或拉生意
 - vi. 游说;拉选票
 - n. 讨论;细查;劝诱
 
英英释意
- 1. the setting for a narrative or fictional or dramatic account;
 - "the crowded canvas of history"
 - "the movie demanded a dramatic canvas of sound"
 
- 2. an inquiry into public opinion conducted by interviewing a random sample of people
 
- 3. a large piece of fabric (as canvas) by means of which wind is used to propel a sailing vessel
 
- 4. a tent made of canvas
 
- 5. an oil painting on canvas
 
- 6. the mat that forms the floor of the ring in which boxers or professional wrestlers compete;
 - "the boxer picked himself up off the canvas"
 
- 7. heavy closely woven fabric (used for clothing or chairs or sails or tents)