| 单词 | sentinel animal |
| 释义 | sentinel animalnoun an animal that is placed in a given environment and then monitored to find out if an infectious disease or other harmful agent is present in that environment |
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英语词典包含233703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。