Alligators still exist in some of the dank 潮湿 swamps and bayous小海湾 of Alabama's coastal regions.

Alligatorsstillexistinsomeofthedank潮湿swampsandbayous小海湾ofAlabama'scoastalregions.

The first important exposition in the United States was held in Philadelphia in 1876.

By the nineteenth century, embroidery on men's clothing had virtually disappeared except for the occasional decorative vest and tie.

Blue－green algae grow abundantly in salt marshes.