观察员的英文怎么说

观察员的英文：
observer

The old man was sent along as an observer.
那个老人被派作观察员。

You can't speak at this meeting, you are here as an oBserver.
你不能在会上发言，你只是个观察员。

Observers here say Yao can make a huge impact even in retirement.
观察员说姚明即使退役了也能起到非常大的作用。

An aircraft spotter,ie one who looks for and identifies different types of aircraft,esp in wartime
飞机观察员(寻找并辨认各类飞机的人,尤指战时)

We observed the barometer fall. [The barometer was observed to fall.]
我们看见晴雨表下降。

Observation is the best teacher.
观察是最好的老师。

They observed the behavior of their new pet.
他们观察他们新宠物的生活习性。

The professor is an acute observer.
那教授是位敏锐的观察家。

This suspect comes under observation.
这个可疑分子受到监视。