形容词
中文翻译：迁移的
同义词：
['transient', 'nomadic例句：1. The migratory birds migrated to their summer homes in the south.（迁徙的鸟类飞往南方过冬。）']
例句：
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1. The migratory birds migrated to their summer homes in the south.
迁徙的鸟类飞往南方过冬。
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2.The nomadic tribes roamed the desert for months without food or water.
游牧部落在沙漠中游荡数月，没有食物和水。
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3.The migratory bird population has been declining due to climate change.
由于气候变化，候鸟种群数量正在下降。