observer
UK/əb'zɜːvə/US/әb'zә:vә/
B2
Definitions
n.
A person who watches or notices something
观察者，观测者；旁观者
n.
A person who attends an event to monitor it but takes no active part
（不参与的）观察员、监察员
Root Breakdown
Root-derivedob-against, toward, in the way of
+
-erone who does, agent
=observer
observe + -er = one who observes. Note the second sense: a UN observer or election observer watches officially without joining in — present to monitor, not to act.
Root serv still carries 62 more wordsCommon Collocations
- 1.keen observer敏锐的观察者
- 2.independent observer独立观察员
- 3.election observer选举观察员
- 4.casual observer一般旁观者
Example Sentences
- 1.
A keen observer would have noticed the slight change in his expression.
- 2.
International observers were sent to monitor the election.