Wherever possible, the illustrations are taken from literature.

只要有可能, 例证都取自文学。

You must adduce a lot of examples to support your argument.

你必须引用许多例证来证明你观点。

It instances in a great author.

这是从位大家里获得例证。

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(由白人扮演黑人)、杂耍演，或乐性药巡回演、表演会与内河游艺船等，均可为美国民间戏剧例证。