sign up片語動詞KK [saɪn ʌp] /saɪn ʌp/發音片語動詞1報名、註冊、登記I signed up for an online course in data analysis.我報名了一門數據分析的線上課程。2簽約加入、應徵入伍He signed up with the navy right after finishing high school.他高中一畢業就簽約加入海軍。3簽下、招募、吸收可拆開The club signed up three new players before the season began.賽季開始前,俱樂部簽下了三名新球員。名詞1註冊、報名Please fill in the sign-up sheet at the front desk.請在前台填寫報名表。