贸易战是一种经济冲突，当各国为了报复对方的不公平贸易行为而相互征收关税或其他贸易壁垒时，就会引发贸易战。贸易战通常始于一国采取保护主义措施（例如提高进口关税或限制外国商品），以保护国内产业免受外国竞争。作为回应，受影响的国家会以关税进行报复，从而导致贸易限制不断升级的恶性循环。
A trade war is an economic conflict that arises when countries impose tariffs or other trade barriers on each other in retaliation for perceived unfair trade practices. It typically begins when one country takes protectionist measures—such as raising import duties or restricting foreign goods—to shield domestic industries from foreign competition. In response, the affected country retaliates with its own tariffs, leading to a cycle of escalating trade restrictions.
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