ADJECTIVE | ADULT + NOUNADJECTIVE➤young青年人◇This book will definitely appeal to teenagers and young adults.這本書肯定會吸引青少年。➤single單身的成年人◇The number of single-adult households has doubled in the past 30 years.過去 30 年中,單身成年人家庭的數量翻了一番。➤consenting到達法定性成熟年齡的成年人◇What consenting adults do in private is their own business.到了法定性成熟年齡的成年人私下裏做什麼是他們自己的事。➤responsible負責任的成人◇I simply can't believe that responsible adults allowed a child to wander the streets.我簡直不相信任何有責任感的成年人會讓一個孩子在街上遊蕩。ADULT + NOUN➤education, literacy成人教育;成人的讀寫能力▸➤population成人人口