آن‌ها ماشین‌های زنگ‌زدایی‌شده با تودوزی جدید هستند.

Questions & Answers about آن‌ها ماشین‌های زنگ‌زدایی‌شده با تودوزی جدید هستند.

How does the compound adjective زنگ‌زدایی‌شده work in this sentence?
This perfectly demonstrates a reduced relative clause. Instead of using a full clause like 'cars that have had their rust removed,' Farsi combines the noun زنگ‌زدایی (rust removal) with شده (the past participle of شدن). Together, they form the compound passive participle زنگ‌زدایی‌شده (rust-removed), which acts as a normal adjective modifying ماشین‌های.
What is the exact breakdown of the word زنگ‌زدایی?
It is made of two parts: زنگ (rust) and زدایی (removal or clearing). The word زدایی comes from the formal verb زدودن (to remove or polish away). By adding the ی suffix to its present stem (زدای), it creates the noun 'removal.'
Could I just say ماشین‌های زنگ‌زده instead?
No, because that means the exact opposite! زنگ‌زده means 'rusted' or 'rusty' (from زنگ زدن, to rust). By adding زدایی (removal) into the middle of the compound before شده, you change the meaning from 'rusted cars' to 'rust-removed cars.'
How does the word تودوزی translate to 'upholstery'?
It is a literal compound meaning 'inside-sewing.' It combines تو (inside) with دوزی (sewing, derived from the verb دوختن). In the context of vehicles or furniture, it is the standard word for interior upholstery.

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