youthfulKK [ˋjuθfəl] /ˈjuθfəl/形容詞1年輕的、顯得年輕的She has a youthful face that makes her look thirty.她有一張年輕的臉,看起來像三十歲。2有活力的、朝氣蓬勃的、充滿青春氣息的The band still plays with youthful energy after twenty years.這個樂團出道二十年,演出仍然充滿活力。3青年的、年少時的He looks back on his youthful mistakes without regret.他回顧年少時犯的錯,並不覺得後悔。4年輕人組成的、以年輕人為主的The company has a youthful workforce with an average age of twenty-eight.這家公司的員工很年輕,平均年齡二十八歲。