求翻译：在2011年上海游泳世锦赛中，孙杨在800米、1500米自由泳两个项目上夺得金牌，在4X200米自由泳接力中为中国男队获得铜牌立下汗马功劳。是什么意思？

Swimming World Championships in 2011 in Shanghai, Sun Young in the 800 meters, 1,500 m freestyle gold medal on two projects in the 4X200 meter freestyle relay, bronze in the men's team made major contributions toward China.

In 2011, Shanghai's swimming world championships in Sun Yang at 800 meters, 1500 meters freestyle gold medals, two at 4 200 m freestyle relay in X for Chinese men's team won the bronze medal gold.

In 2011 in the Shanghai swimming international championship, Sun Yang in 800 meter, 1500 meter crawl two projects wins the gold medal, relay obtains the bronze medal in the 4X200 rice crawl for the Chinese men's team to establish the distinguished service.

In 2011 the swimming World Championships in Shanghai, Sun Yang in the 800 m and 1500 m freestyle two projects won the gold medal, 4X200 yrs for China men's team bronze medal in the relay made distinguished achievements.

In 2011 the swimming World Championships in Shanghai, Sun Yang in the 800 m and 1500 m freestyle two projects won the gold medal, 4X200 yrs for China men's team bronze medal in the relay made distinguished achievements.