形容词
中文翻译：未受压力的
同义词：
['free', 'unburdened', 'unencumbered']
例句：
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1.The team was unstrained and ready to compete at the championship level.
团队未受压力，准备在锦标赛级别上竞争。
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2.The new manager has brought a fresh perspective to the company, making it unstrained and more efficient.
新任经理为公司带来了新的视角，使公司未受压力且更加高效。
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3. The researcher found that the unstrained environment allowed for better data collection and analysis.
研究员发现，未受压力的环境有利于更好的数据收集和分析。