Translate the following into English with words or phrases given in brackets.
据说四肢爬行对人的健康有利。(say)
IT IS SAID THAT CRAWLING ON ALL FOURS BRINGS BENEFITS TO HUMAN'S HEALTH. 
Translate the following into English with words or phrases given in brackets.
据说四肢爬行对人的健康有利。(say)
Translate the following into English with words or phrases given in brackets.
据说四肢爬行对人的健康有利。(say)
IT IS SAID THAT CRAWLING ON ALL FOURS BRINGS BENEFITS TO HUMAN'S HEALTH.