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observed (Verb (past tense/past participle), Adjective)

دانشمند تغییرات را در آزمایشگاه مشاهده کرد.

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Think of an 'Observer' in an 'Observatory' who 'Observed' the stars and 'Observed' the rules of the telescope.

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⚠️ اشتباهات رایج

I observed a movie last night. → I watched a movie last night.

The rules must be observed to. → The rules must be observed.