base
line
复数形式
baselines
1
基线, 起点
the initial point from which measurements or comparisons are made
- They established a baseline for productivity by measuring output before implementing changes.
他们通过测量实施变更前的产出，为生产力建立了一个基线。
- The doctor set a baseline for the patient's health by conducting a thorough examination.
医生通过彻底检查为患者的健康设定了基线。
- The project manager used last year's data as a baseline for forecasting future expenses.
项目经理使用去年的数据作为预测未来支出的基准。
- The environmental agency monitored pollution levels to establish a baseline for improvement efforts.
环保机构监测污染水平，以建立改进努力的基线。
- The coach assessed each player's skills to establish a baseline for training sessions.
教练评估了每位球员的技能，为训练课程建立了一个基准。
2
基线, 跑垒路径
(baseball) the path a baserunner must follow while running from one base to another
A baseline in baseball or softball is an imaginary line that connects the bases on the field, marking the path runners follow when moving from one base to the next. There are two main baselines: one runs between first and third base, and the other runs from home plate to first base. These lines help the players stay in position and guide the runners in their attempts to reach bases safely. If a runner strays too far from the baseline while running, they could be tagged out by the fielding team.
- The runner stayed close to the baseline to avoid being tagged out.
跑者靠近垒线以避免被触杀。
- He rounded the baseline after hitting a single.
他在击出一垒打后绕过了垒线。
- The coach instructed the player to run the baseline aggressively.
教练指示球员积极跑垒线。
- She slid into second base along the baseline.
她沿着基准线滑入了二垒。
- The umpire watched closely to ensure the runner stayed within the baseline.
裁判员仔细观察以确保跑垒员留在基准线内。
3
底线, 基线
the back boundary line of a playing area, especially in sports like tennis, volleyball, or badminton
A baseline is the back boundary line of a playing area, commonly seen in sports like tennis, volleyball, or badminton. It marks the farthest point at the back of the court, and players must stay within these lines during play. In tennis, for example, the baseline runs parallel to the net and helps define the playing area for each side. Players often use the baseline as a reference for positioning themselves during rallies, and hitting the ball beyond it results in a point loss. It is an important element for maintaining court boundaries and strategy.
- The tennis player hit a powerful shot that landed just inside the baseline.
网球选手打出了一记强有力的击球，正好落在底线内侧。
- The volleyball player served from behind the baseline.
排球运动员从底线后面发球。
- She positioned herself close to the baseline to return the serve.
她靠近底线站位以回发球。
- The badminton shuttlecock landed just on the baseline, earning a point.
羽毛球正好落在底线上，赢得了一分。
- The soccer goalie stayed near the baseline to defend against long shots.
足球守门员留在底线附近以防守远射。
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