the means of "Could you please check on your father"

China
July 14, 2011 9:45pm CST
Hello everyone,I came from China and I am learning English. On one book I see the sentence that "Could you plese check on you father" . I was confused by the phrase of"check on" and in my opinion that is confirm or verify sth . Would you like to explain the sentence for me ,thanks !
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