Question

By the middle of the twentieth century, painters and sculptors in the United States had begun to exert a great worldwide influence over art.

Accepted Answer

到了二十一世纪中叶，美国画家和雕塑家开始在世界范围内对艺术产生重大影响。

Front	By the middle of the twentieth century, painters and sculptors in the United States had begun to exert a great worldwide influence over art.
Back	到了二十一世纪中叶，美国画家和雕塑家开始在世界范围内对艺术产生重大影响。

Middle Twentieth Century Painters Sculptors United States Begun