"It's quite a cross-section of American maritime history frozen in time on the Great Lakes.

VOA: special.2009.11.11

It does have a port, but it's frozen all the time.

俄国确实有个港口,但长年冰封

耶鲁公开课 - 欧洲文明课程节选

She says she and Heather Hansen have heard from readers who no longer think of the places they visit as pictures on postcards that are frozen in time.

VOA: special.2009.04.22