•The role of scientists is to observe and describe the world, not to try to control it.科学家的任务是观察和描述这个世界，而不是试图控制它。

•[+ question word] He spent a year in the jungle, observing how deforestation is affecting local tribes.他在丛林里呆了1年，考察滥伐森林对当地部落造成了何种影响。

•Children learn by observing adults.儿童透过观察成年人来学习。

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•Jack observed a look of anxiety on his brother's face.杰克注意到了他哥哥脸上焦急的神情。

•[+ question word] The guards failed to observe wh o delivered the package.卫兵没有注意到是谁递送的这个包裹。

•[+ that] In all these films one observes that directors are taking a new interest in Native American culture.在所有这些电影中，人们发现导演们对美国本土文化产生了新的兴趣。

•[+ infinitive without to] A teacher observed her climb over the gate.有位老师看到她翻过大门。

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•[+ speech] "I've always found German cars very reliable, " he observed.“我一直认为德国汽车很可靠，”他说道。

•[+ that] She observed that it would soon be time to stop for lunch.她说很快就到停下来吃午饭的时间了。

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•People must observe the law. Nobody should be an exception.人们必须遵纪守法，谁都不应该例外。

•The old people in the village still observe the local traditions.村里的老人仍然遵守当地的传统。

•Do you observe Passover?你们过逾越节吗？