look, see, watch, observe, witness

動詞 observe:

1. discover or determine the existence, presence, or fact of
   同義詞：detect, find, discover, notice
2. make mention of
   同義詞：note, mention, remark
3. observe with care or pay close attention to
   同義詞：note, take note
4. watch attentively
5. show respect towards
   同義詞：respect, honor, honour, abide by
6. celebrate, as of holidays or rites
   同義詞：celebrate, keep
7. follow with the eyes or the mind
   同義詞：watch, follow, watch over, keep an eye on
8. observe correctly or closely
   同義詞：keep, maintain
9. conform one's action or practice to
   同義詞：keep

1. We should observe the proprieties.
   我們應該遵守禮節(jié)。
2. The police have been observing his movements.
   警方一直監(jiān)視著他的一舉一動。
3. Do you observe Christmas?
   你有過圣誕節(jié)的習俗嗎？
4. I observed him entering the bank with a gun.
   我看到他帶著槍進了銀行。

ob.serve

v.（動詞）
ob.served,ob.serv.ing,ob.serves
v.tr.（及物動詞）
To be or become aware of, especially through careful and directed attention; notice.
注意，覺察：覺察到，尤其是通過仔細和直接的注意；注意
To watch attentively:
觀察：聚精會神地看：
例句：
observe a child`s behavior.
觀察一個孩子的行為

To make a systematic or scientific observation of:
觀測：對…作系統(tǒng)的或科學的觀察：
例句：
observe the orbit of the moon.
觀測月球的軌道

To say casually; remark.
評論：隨便地說；發(fā)表意見
To adhere to or abide by:
遵守：遵守或服從：
例句：
observe the terms of a contract.
遵守合同的條款

To keep or celebrate (a holiday, for example):
慶祝：保留或慶祝（如，節(jié)日）：
例句：
observe an anniversary.
慶祝周年紀念日

v.intr.（不及物動詞）
To take notice.
觀察
To say something; make a comment or remark.
評論：說；評價或發(fā)表意見
To watch or be present without participating actively:
看：觀看或出席而不積極參與：
例句：
We were invited to the conference solely to observe.
我們被邀請，不過只是出席會議而已

來源：
Middle English observen [to conform to]
中古英語 observen [與…一致]
from Old French observer
源自 古法語 observer
from Latin observ3re [to abide by, watch]
源自 拉丁語 observ3re [遵守，看]
ob- [over] * see ob-
ob- [在…上] *參見 ob-
serv3re [to keep, watch] * see ser-
serv3re [保留，看] *參見 ser-

【引伸】
observ.ingly
adv.（副詞）
<參考詞匯><同義詞>observe,keep,celebrate,commemorate,solemnizeThese verbs are compared as they mean to give proper heed to or show proper reverence for something, such as a rule, custom, or holiday.
當這些動詞都表示給予一定注意或對某些事物，如對規(guī)定、習慣、或節(jié)日表一定尊敬時。
Observe stresses respectful adherence,as to law or tradition,often in the form of compliance with prescribed rites:
Observe 強調尊敬性的遵從，如對于法律或傳統(tǒng)，常常以遵守規(guī)定的禮儀儀式為形式：
例句：
observe the speed limit;
遵守速度限制；

例句：
observe the Sabbath.
信守安息日。

Keep contrasts withbreak and violate; it implies actions such as the discharge of a duty or the fulfillment of a promise:
Keep 相對于break 和 violate； 它暗含有如未盡職責或沒有實現(xiàn)諾言等行為：
例句：
He said he would help, and he kept his word.
他說過要幫忙的，他兌現(xiàn)了。

Celebrate in this comparison emphasizes observance in the form of rejoicing or festivity:
Celebrate 在這項比較上強調以歡樂或喜慶形式的遵從：
例句：
We are planning a surprise party to celebrate her birthday. Tocommemorate is to honor the memory of a past event;
我們正為他的生日而準備著一個驚奇的派對。 而commemorate 是對過去的事件的記憶的尊敬；

solemnize implies dignity and gravity in the celebration of an occasion:
solemnize 暗含某一慶祝場面的莊重和嚴肅：
例句：
.It [July 2, 77'] ought to be commemorated as the day of deliverance . . . It ought to be solemnized with pomp and parade . . .from one end of this continent to the other, from this time forward forevermore. (John Adams).See also Synonyms at see
.它［77'年7月2日］ 應作為誕生之日來紀念…… 應用壯觀的典禮和游行來隆重慶?！瓘倪@片大陸的這頭到那頭，從此時到永遠. （約翰·亞當斯）參見同義詞 see