求翻译：2000年9月15日至10月1日，来自全球200个代表团的11000多名运动员，参加了21世纪第一次奥运会——在澳大利亚 悉尼举行的第二十七届奥运会28个大项、300个小项的角逐。是什么意思？

2000 年 15 September to 1 October, 200 delegations from around the world more than 11,000 athletes took part in the 21st century, the first Olympic Games - Sydney, Australia, the 27th Olympic Games held in 28 major items, 300 small items of contention.

On 15 September 2000 to October 1, a delegation from the Global 200 of 11,000 athletes participating in the 21 century, the first Olympic Games held in Sydney, Australia - 27 of 28 games, and 300 items were the rivalry.

From September 15, 2000 to October 1, from around the globe 200 delegation's more than 11000 athletes, attended the 21st century first Olympic Games - - the 27th session of Olympic Games 28 major terms, 300 minor term contentions which holds in the Australian Sydney.

September 15, 2000, from the world over 200 delegations of more than 11,000 athletes, took part in the 21st century Olympic Games – for the first time in Australia in Sydney in 27th Olympic Games, held 28 large items, 300 small race.

On September 15 to October 1, 2000, more than 11000 athletes from 200 delegations in the world, participated in the first Olympic Games in the 21st century --28 great one, the contentions of 300 minterms of the 27th Olympic Games held in Sydney of Australia.