lengthenKK [ˋlɛŋθən] /ˈlɛŋθən/發音動詞1延長、加長The tailor agreed to lengthen the sleeves by two inches.裁縫師答應把袖子加長兩吋。2變長、拉長The shadows lengthened as the sun dropped behind the hills.太陽落到山後,影子逐漸拉長。3延長、拖長指時間The company decided to lengthen the warranty to three years.公司決定把保固期延長到三年。