AI 摘要
US-Canada trade deficit driven by discounted crude imports for Midwest refineries.
trade_deficitenergy_policyus-canada_relations中性情感
本摘要由 AI 生成，请从原始来源核实细节。
US-Canada trade deficit driven by discounted crude imports for Midwest refineries.
本摘要由 AI 生成，请从原始来源核实细节。