n.a large smooth mass of rock detached from its place of origin
同义词：boulder
bowlder例句
bowlder bowlder bowlder Dental radiograms and their interpretation Richmond and Great Barrington bowlder trains Bowlder dredge Talking about Antcient Bowlder Road and Qinghai Silk Road Investigation on occupational health status in bowlder processing industries in a city BOWLDER OUTLINE FIGURES IN THE DAKOTAS, SURVEYED IN THE SUMMER OF 1890 Height of the Bay of Fundy Coast in the Glacial Period relative to Sea-level, as evidenced by marine Fossils in the Bowlder-clay at ... Four Kinds of Bowlders of Gouangdong Province Digital Bowlderizing: Removing the Naughty Bytes The Bowlderisation of psychiatry
