名词
中文翻译：无场地赛道
同义词：
['off-track', 'off-course例句：1. The runners were competing in a no-field track race.（跑步者正在参加一场无场地赛道比赛。）']
例句：
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1. The runners were competing in a no-field track race.
跑步者正在参加一场无场地赛道比赛。
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2.The team decided to switch to an off-field training method.
团队决定改变训练方法，采用场外训练。
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3.Off-course events are often more challenging than on-track competitions.
场外赛事往往比场内赛事更具挑战性。