Scientists are therefore keeping watch to see if H5N1 infects other animals besides birds.

因此科学家密切关注禽流感是否感染禽以外的其他动物。

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But here in the USA, NOAA, the National Weather Service, NASA, the FAA and everyone else is keeping watch.

但是在美国，NOAA，国家气象中心，NASA，美国联邦航空局以及每一个公民都在关注。

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Masked men wielding clubs guard the entrance to the Athens Polytechnic University, keeping watch over the graffiti-covered walls on campus.

为了保护校园中涂有标语的围墙，蒙面者们手持棍棒守卫在雅典理工大学入口。

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The Environmental Protection Agency, is keeping a close watch on threats to the delicate eco-system along the coastline.

VOA: standard.2010.05.18

British soldiers in uniform gather in front of the makeshift canteen, keeping watch, eating candy bars.

FORBES: On The Cover/Top Stories

Indeed, safety experts generally advise against logging in as their children, or even "friending" them as a means of keeping watch.

BBC: Child safety measures to protect against internet threats

Some have suggested that the solution lies in technology - telecare with devices "keeping watch" for the unforeseen crisis or fall.

BBC: 'Care gaps and funding gaps'