On the north bank of the Ohio river sits Evansville, Ind, home of David Williams, 52, and of a riverboat casino, a place where gambling games are played.

• 英语文章绝大多数都是总分结构，无论是全篇的逻辑，还是每一个独立的意群(一般以自然段的形式出现)的逻辑都是总分结构。