不得使用监狱劳动力。根据美国海关与边防局，进口监狱劳动力生产的产品进入美国是违法的。
No prison labor may be used. Is is illegal to import products produced by prison labor in the the United States per U. S. Customs and Border Protection.
结论监狱基层男性警察在情绪劳动表现策略中最经常使用的自然表现，其次是深层表现，最后是表面表现。
Conclusion Prison basic-level male police in emotional labor performance strategy, the natural performance is the most frequently used, followed by deep expression, finally is surface performance.
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