number one片語KK [ˋnʌmbɚ wʌn] /ˈnʌmbɚ wʌn/發音片語1第一名、冠軍、榜首Their new single went straight to number one last week.他們的新歌上週直接衝上排行榜第一名。2自己、個人利益口語He always looks after number one before helping anyone else.他總是先顧好自己，才會去幫別人。3小便、小號口語，兒語The little boy said he needed to go number one.那個小男孩說他要去上小號。形容詞1頭號的、首要的、最重要的Keeping the children safe is our number-one priority.確保孩子的安全是我們的首要任務。2最暢銷的、最受歡迎的It became the number-one selling phone in the country.它成了全國最暢銷的手機。