promotor：发起人；倡导者，赞助人

词根词缀：pro-前 + -mot-移动 + -or名词词尾

• scrabble
• scrag
• scraggy
• scram
• scramble
• scrambler
• scrap
• scrapbook
• scrape
• scraper
• scrapie
• scraping
• scrappy
• scrapyard
• scratch
• scratchy
• scrawl
• scrawny
• scree
• screed
• screen
• screener
• screenplay
• screw
• scribble