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字词 大动脉
释义 大动脉dàdòngmài
1.主动脉。{main artery}
2.〈比喻fig.主要的交通干线{trunk line of transportation}:
京广铁路是我国南北交通的{The Beijing-Guangzhou Railway is a main artery between the north and south of our country.}
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更新时间:2025/5/7 11:22:47