短语动词:Come Back和Come Up

knight – n. a soldier in the past who had a high social rank and who fought while riding a horse and usually wearing armor

rank – v. to rate or place (someone or something) in a position among a group of people or things that are being judged

conversation – n. an informal talk involving two people or a small group of people; the act of talking in an unofficial way

topic – n. a subject or issue being discussed

progressive tense – v. a verb tense that is used to mean an action or a state that is continuing to happen

interview – n. a meeting involving two or more people during which information is collected

practice – v. to train by repeated exercises