baseline

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。

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。

壘線棒球

The runner stepped off the baseline and was called out.

跑者偏離壘線，被判出局。

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。