名词
中文翻译：关税墙
同义词：
['trade barrier', 'customs barrier']
例句：
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1. The tariff wall has been a major obstacle to trade between the two countries.
关税墙一直是两国贸易的主要障碍。
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2. The government is considering raising tariffs on imported goods to protect domestic industries.
政府正在考虑提高进口商品的关税以保护国内产业。
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3. Tariff walls can be an effective way to protect domestic industries while still allowing for international trade.
关税墙可以是一种有效的方式来保护国内产业，同时仍然允许国际贸易。