名词
中文翻译：呼吸高峰
同义词：
['peak', 'peak point', 'breathing peak']
例句：
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1. The oxygen concentration in the air reached its peak during the day.
在白天，空气中的氧气浓度达到了峰值。
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2. The researchers found that the peak of the epidemic occurred in January.
研究人员发现，疫情的高峰期出现在一月份。
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3. During the peak of the pandemic, many people were forced to stay home.
在大流行期间，许多人被迫待在家里。