名词
中文翻译：迁徙阶段
同义词：
['migration period', 'migration stage例句：1. During the migratory stage', 'birds are constantly flying and searching for food.（在迁徙期，鸟类不断地飞行和寻找食物。）2. The migratory stage is crucial for the survival of many species.（迁徙期对于许多物种的生存至关重要。）']
例句：
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1. During the migratory stage, birds are constantly flying and searching for food.
在迁徙期，鸟类不断地飞行和寻找食物。
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2. The migratory stage is crucial for the survival of many species.
迁徙期对于许多物种的生存至关重要。
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3.The scientists observed that the migratory stage was influenced by various factors.
科学家们观察到，迁徙期受到各种因素的影响。