adultKK [əˋdʌlt] /əˈdʌlt/發音名詞1成人、大人、成年人The ticket costs twelve dollars for adults and six for children.門票成人十二元，兒童六元。2成蟲、成年動物These insects live only a few days as adults.這些昆蟲成蟲之後只能活幾天。形容詞1成年的、成人的The course is designed for adult learners with full-time jobs.這門課程是為有全職工作的成年學習者設計的。2成年的、發育完全的指動植物An adult elephant can weigh more than five tons.一頭成年大象可以重達五公噸以上。3成人的、色情的委婉The website requires age verification for adult content.該網站的成人內容需要先驗證年齡。4成熟的、懂事的She handled the criticism in a very adult way.她以非常成熟的態度面對那些批評。