baselineKK [ˋbeˏslaɪn] /ˈbeɪˌslaɪn/發音名詞1基準、基準線、基線We need a baseline before we can measure any improvement.我們需要一個基準，才能衡量是否有進步。2底線網球She hit a powerful forehand from the baseline.她在底線附近打出一記強勁的正拍。3壘線棒球The runner stepped off the baseline and was called out.跑者偏離壘線，被判出局。形容詞1基準的、基本的The clinic recorded baseline data for every patient.診所為每位病患記錄了基準資料。