形容词
中文翻译：迁移的
同义词：
['transient', 'nomadic', 'migratory', 'migratory']
例句：
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1.Many birds migrate between the Arctic and Antarctic each year.
每年，许多鸟类在北极和南极之间迁徙。
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2.The migratory bird population has decreased significantly in recent years.
近年来，候鸟种群数量显著减少。
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3. Migratory birds are often seen during migration season.
迁徙季节，经常可以看到迁徙的鸟类。