ThehugeFloridawetlandknownastheEvergladesisaslow-moving...
问题详情：ThehugeFloridawetlandknownastheEvergladesisaslow-movingriver80kilometerswidebutonlyafewcentimetersdeep.PeoplecalltheEvergladesa“riverofgrass”becausesawgrasscoversmostofit.Sawgrassisnotreally...