Swimmers are the only racing competitors who don't cross a finish line. Instead they have electronic touch boards at the end of each pool lane that will accurately record the end of each length.
游泳选手是唯一不需要通过终点线的速度比赛选手，取而代之的是安装在泳道末端的电动计时触板，它将精确地记录下选手们每次游到终点的时间。
Swimmers are the only racing competitors who don't cross a finish line. Instead they have electronic touch boards at the end of each pool lane that will accurately record the end of each length.
游泳选手是唯一不需要通过终点线的速度比赛选手，取而代之的是安装在泳道末端的电动计时触板，它将精确地记录下选手们每次游到终点的时间。
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