| 释义 |
bed-rock Geol. (orig. U.S.)
The solid rock underlying alluvial and other superficial formations; also fig. bottom, lowest level.
1850N. Kingsley Diary (1914) 154 We are in for seeing the bed rock all along the bottom. 1872Schele de Vere Americanisms 171 The miner..hopes to reach bed-rock, where gold is found in quantities. 1873G. A. Lawrence Silverland 181 The material invariably waxes greatly richer as the ‘bed-rock’ is neared. 1879Encycl. Brit. X. 745/1 In alluvial deposits the richest ground is usually found in contact with the bed rock.
fig.1869S. Bowles Our New West v. 99 We came down to ‘bed-rock’ as the miners say, i.e. an extra flannel shirt and a pocket-comb. 1881Chicago Times 11 June, The transactions..having been based on bed-rock prices. 1883Century 581 The family is about down to bedrock. 1884Nye Baled Hay 65 Whenever the dead-beat poet strikes bedrock. 1900‘O. Henry’ Roads of Destiny iii. 52 From general topics the conversation concentrated to the bed-rock of grim personalities. 1912J. S. Huxley Individ. in Animal Kingdom vi. 151 We have come down to the bed-rock questions of biology. |
