名词
中文翻译：主食贸易同义词
同义词：
['maintenancetrade', 'staple industry']
例句：
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1. The staple trade between the two countriesis oil.
两国之间的主食贸易是石油。
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2.The staple trade of the region is agriculture.
该地区的主食贸易是农业。
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3. The stapletrade between the two countries has been declining in recent years.
两国之间的主食贸易近年来一直在下降。