riverboat

Sometimes the 'classroom' is a Mississippi riverboat.

"有时候,教室就西西比河上的汽船上。"

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.

滑稽说唱团演出(由白人扮演黑人)、杂耍演出，一些娱乐性的药品巡回演出、表演会与内河游艺船等，均可作为间戏剧的例证。