名詞 observation:

1. the act of making and recording a measurement
2. the act of observing; taking a patient look
   同義詞：observance, watching
3. facts learned by observing
4. the act of noticing or paying attention
   同義詞：notice, observance
5. a remark expressing careful consideration
   同義詞：reflection, reflexion

1. The fault escaped observation (ie was not spotted) for months.
   這故障數(shù)月來未引起注意。
2. Are political suspects kept under police observation in your country?
   你們國家的政治嫌疑犯受警察監(jiān)視嗎？
3. He was taken into hospital for observation.
   他被送進醫(yī)院觀察。
4. The thief escaped observation.
   小偷未被人注意。

ob.ser.va.tion

n.Abbr. obs.（名詞）縮寫 obs.

The act or faculty of observing.
觀察的行為或能力
The fact of being observed.
被觀察到的事實

The act of noting and recording something, such as a phenomenon, with instruments.
觀測：用儀器注意到并記錄下來，如某種現(xiàn)象
The result or record of such notation:
觀測結果：觀測的結果或記錄：
例句：
a meteorological observation.
一項氣象學的觀測結果

A comment or remark.See Synonyms at comment
評論：一項評價或議論參見 comment
An inference or a judgment that is acquired from or based on observing.
觀測結論：從觀測得出的推論或判斷

【引伸】
ob.serva.tional
adj.（形容詞）
ob.serva.tionally
adv.（副詞）