How to say they have taken great pains to finish the project, i hear. in jpn

1)(n,adj-na) sparse/not closeno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verb企画no dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verbを(wo) (prt) indicates direct object of action/indicates subject of causative expression/indicates an area traversed/indicates time over which action takes place/indicates point of departure or separation of action/indicates object of desire, like, hate,完了完了(kanryou) (n,vs,adj-no) completion/conclusion/ perfectするno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verbためno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verb彼らno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verb大変no dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verb折ったno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verbそうだno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verb    
sono kikaku wo kanryou surutame karera ha taihen hone wo otta souda 。
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