So scientists thought that the monkeys might be “sentinels” for human lead exposure.
据此，科学家们料想，这些猕猴能够作为指示人居环境铅污染的“哨兵”。
The findings also suggest that cats might help provide an early-warning system for avian flu by acting as 'sentinels', say the scientists, who work at a US Naval Medical Research Unit in Cairo, Egypt.
在位于埃及开罗的美国海军医学研究部工作的科学家们认为，这些发现也提示由猫来充当“哨兵”可能有助于提供一个针对禽流感的预警系统。
There might be lots of sentinels but you have a great advantage over them: the BFT-5000, which can burn through the stone floor beneath you!
可能有大量的哨兵，但你有一个很大的优势，他们说：是信实- 5000 ，它可以通过燃烧的石头地板下面你！
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