名词
中文翻译：生物屏障
同义词：
['biological barrier', 'ecological barrier']
例句：
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1.The biotic barrier is essential for the survival of many species.
生物屏障对于许多物种的生存至关重要。
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2. The researchers found that the biotic barrier was weakening due to human activities.
研究人员发现，由于人类活动，生物屏障正在减弱。
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3. The biotic barrier plays a crucial role in preventing the spread of diseases.
生物屏障在防止疾病传播中起着关键作用。