Hxen.com's tips：Every day persisted can learn English well!-->■Learn English Everyday■
dominate – v. to have main control over a person or thing
alternative – n. something that is different from what is usual
concentration – n. large amount of something in the same place
disrupt – v. prevent something from continuing as usual or planned
shift – v. change direction
decay – v. to gradually become bad or weak
propagate – v. spread or promote something widely
