名词
中文翻译：单极移民同义词
同义词：
['single-polar immigration', 'unidirectional migration']
例句：
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1. The country's policy on unipolar immigration has been a subject of much debate.
该国关于单极移民的政策一直是争论的焦点。
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2. The unipolar immigration has brought about significant changes in the local economy.
单极移民带来了当地经济的重大变化。
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3. The government is considering implementing stricter measures to control unipolar immigration.
政府正在考虑实施更严格的措施来控制单极移民。