This is the 12249th most frequent Korean word.
다운로드를
"다운로드를" means "download" (object marker included).
Here, '다운로드를' is acting as the object of the verb, with its role as the direct object being indicated by the particle '를'.
이 파일을 다운로드를 시작하세요.
Start downloading this file.
In this instance, '다운로드를' specifies what action was incomplete, functioning as the semantic focus of the sentence.
어제부터 다운로드를 완료하지 못했습니다.
I have not been able to complete the download since yesterday.
Here, '다운로드를' highlights the upcoming update's action as the object under discussion.