riverboat

Sometimes the 'classroom' is a Mississippi riverboat.

"有时候,教室就在密西西比河上汽船上。"

A case might be made for the blackface minstrel show, vaudeville, or for the entertainments of some medicine shows, camivals, and riverboats as American folk drama.

滑稽说唱团出(由白人人)、杂耍出，一些娱乐性巡回出、表会与内河游艺船等，均可作为美国民间戏剧例证。