CORPUS OF HISTORICAL AMERICAN ENGLISH
Mark Davies / Brigham Young University
http://corpus.byu.edu/coha/
Mark Davies / Brigham Young University
http://corpus.byu.edu/coha/
Just click the "frequency" figure and you will see the text.但有个问题,只能看到统计频数,不能像COCA可以看到文本,不知如何解决?