| 单词 | systemic arch |
| 释义 | systemic archsystemic archthe 4th aortic arch of a vertebrate through which blood flows from the ventral to the dorsal aorta. Birds have only a right arch, and mammals only a left arch. |
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英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。