Hxen.com's tips：Every day persisted can learn English well!-->■Learn English Everyday■
descent – n. the people in your family who lived before you were born : your ancestors
competitor – n. someone who is trying to win or do better than all others especially in business or sports : someone who is competing
sled – n. a small vehicle that has a flat bottom or long, narrow strips of metal or wood on the bottom and that is used for moving over snow or ice
bully – v. to frighten, hurt, or threaten (a smaller or weaker person) : to act like a bully toward (someone)
