Hxen.com's tips：Every day persisted can learn English well!-->■Learn English Everyday■
contrast – n. something that is different from another thing
classification – n. an arrangement of people or things into groups based on ways that they are alike
catastrophic – adj. causing great damage
swamp – n. land that is always wet and often partly covered with water
inspire – v. to make (someone) want to do something : to give (someone) an idea about what to do or create
