Top: Rio DE Janeiro — Residents try to cross the flooded streets in Rio DE Janeiro, Brazil, on Jan. 12, 2011.

顶图：里约热内卢——2011,1月12日，巴西，里约热内卢，居民们试图穿过被洪水淹没的街道。

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Rio DE Janeiro commonly referred to simply as Rio, is the capital city of the State of Rio DE Janeiro, the second largest city of Brazil.

里约热内卢通常简称为里约，是里约热内卢，巴西第二大国首都的城市。

youdao

Swan set out to change that. Invited to speak to world leaders at the first Earth Summit in Rio de Janeiro,Brazil, in 1992 he outlined a plan.

VOA: standard.2009.12.10

It will be held at the Pontifical Catholic University (PUC-Rio), in Rio de Janeiro, Brazil.

UNESCO: Indigenous Peoples

In 1992, he led the U.S. Senate's delegation to the Earth Summit in Rio de Janeiro, Brazil.

CNN: Vital Stats

In 1992, the world's largest environmental summit opened in Rio De Janeiro, Brazil, with 178 nations taking part.

CNN: Tuesday,