observe
单词辨析：
侧重短暂的看的动作，但并不一定能看见，有时用来唤起别人的注意。
Look at the blackboard.
看黑板。
Look at my new car.
瞧瞧我的新车。
She covered her eyes, afraid to look.
她蒙上眼睛，不敢看。
指注意到某事物，或为了解某人、某事而对其进行仔细观察。
The far side of the moon is difficult for us to observe.
我们难以观察到月亮的另一面。
Thousands of people observed the ship leaving the harbour.
数以千计的人观看了轮船离港下水的情形。
The scientist carefully observed the specimen.
这名科学家仔细观察标本。
指发现或意识到某事；也指以某种方式理解某人或某事。
I perceived a change in his behaviour.
我发觉他的行为有些变化。
I can't perceive any difference between these pictures.
我看不出这些图片有什么差别。
She is perceived as the future president.
她被视为未来的总裁。
侧重看的结果；也指眼睛看得见或观看比赛、电视节目等。
He looked but saw nothing.
他看了看，但什么也没有看见。
You can see for miles from here.
从这儿可以看到好几英里远。
Did you see that programme last night?
你昨晚看那个节目了吗？
指在一段时间内关注某人或某事。
watch television
看电视
Next time you visit the zoo, watch the tigers carefully.
下次你们参观动物园，要仔细观察老虎。
Can you recommend a place where we can watch the beautiful sunrise?
你能推荐一个我们可以观看美丽日出的地方吗？
普通用词，指依据法律法规行事，也指服从某种权威。
A good citizen must obey the law.
一个好公民必须守法。
Soldiers are expected to obey orders without questioning them.
军人应当毫无异议地服从命令。
指依照法规、协议、决定等行事，含即使不同意也必须接受并服从之意。
We have to abide by the new rules.
我们必须遵守新的规定。
She will abide by her promise.
她会信守诺言的。
They have to abide by the refree's decision.
他们必须服从裁判的决定。
指接受劝告、听从指示等，强调按照别人所告知、示范等的内容去做。
follow a diet/recipe
按照规定饮食/采用规定食谱
Why didn't you follow the doctor's advice?
你为什么不听医生的劝告？
Take care to follow the instructions.
注意按照指示进行。
指奉行法律、协议、习俗等，常可与 obey 换用。
This new law must be strictly observed/obeyed.
这项新法律必须严格遵守。
Both sides have observed/obeyed the ceasefire.
双方都遵守了停火协定。
相关例句：
Aim: to observe the clinical effects of alfacalcidol the treatment of postmenopausal osteoporosis.
目的：观察阿法骨化醇治疗绝经后骨质疏松症的疗效。
Our sniper teams observed them manning an anti-aircraft gun.
我们的狙击队观看他们操作高射炮。
One should not only observe but also help.
不但要看，而且要帮。
We observe that the first calls for radical transformation did not begin until the period of the industrial revolution
我们认为直到工业革命时期才出现了要求彻底变革的第一波呐喊。
Are there any classes I could observe?
有我可以观摩的课吗？
The party organization should make serious efforts to educate and observe the probationary members.
党组织对预备党员应当认真教育和考察。