observed + noun
后接名词，表示观察或注意到某事物。
The scientist observed the phenomenon.
科学家观察了这个现象。
被观测到的；被注意到的
在非通常日期特别庆祝的；观测的；观察的
perceived or noticed by observation
常作定语
在非通常日期特别庆祝的
Exceptionally celebrated on a date other than the usual date.
The scientist observed the behavior of the ants for several hours.
科学家观察蚂蚁的行为长达数小时。
用法提示：这里'observed'作及物动词的过去式，表示'观察'。
The changes were observed by the research team.
这些变化被研究团队观察到。
用法提示：这里'observed'是过去分词，用于被动语态，表示'被观察到'。
She observed that the temperature had dropped significantly.
她注意到温度显著下降了。
用法提示：这里'observed'后接that从句，表示'注意到'或'指出'。
后接名词，表示观察或注意到某事物。
The scientist observed the phenomenon.
科学家观察了这个现象。
常用于陈述观察到的事实。
She observed that the door was open.
她注意到门是开着的。
表示目睹某人正在做某事。
We observed him leaving the building.
我们看到他离开大楼。
grammar · medium
易错句子He observed to the problem.
正确表达He observed the problem.
Observed 是及物动词，直接跟宾语，不需要介词 'to'。
grammar · medium
易错句子She was observed the accident.
正确表达She observed the accident.
Observed 作为过去式时主动语态不需要 'was'；'was observed' 是被动语态，但此处应为主动。
拼写相似，但served意为服务、提供，observed意为观察、注意到
拼写相似，但preserved意为保存、保护，observed意为观察或遵守
拼写相似，但reserved意为保留或预订，也可形容人内向，observed意为观察或注意到
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