名词
中文翻译：平衡对
同义词：
['equilibrium pair', 'balanced pair例句：1. The team needs a balanced pair of forwards and defenders.（这个队伍需要一对前锋和后卫。）']
例句：
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1. The team needs a balanced pair of forwards and defenders.
这个队伍需要一对前锋和后卫。
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2. In the study of economics, a balanced pair of supply and demand is crucial.
在经济学研究中，供需平衡是至关重要的。
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3. The new software features a balanced pair of security and usability.
这款新软件以安全和易用性为平衡点。