| 词汇 | boulder |
| 释义 | boulder noun[ C ] uk /ˈbəʊl.dər/ us /ˈboʊl.dɚ/ a very large rock巨石 Andrew Merry/Moment/GettyImages Geology: types of rock agglomerate arenaceous arenite asthenosphere asthenospheric emery flinty gneiss haematite indurated intrusive lahar lodestone magma marl marmoreal obsidian sandstone schist shale At dawn on the second day, he decided to try and use his climbing gear to lift the boulder off his arm. He had seen a rocky ledge above him, and he thought he might be able to throw his rope over the ledge and pull the boulder up. He used his feet to push himself up over the boulder. The boulder didn’t even move an inch. One huge boulder was wet, as if water had been splashed over it. The nearer hills are much sharper and steeper, and their sides are studded by great boulders. The novelist came down the path, on a run, to seat himself upon the gray boulder. The summit was rough and rugged, though devoid of big boulders such as are usually to be found in similar locations. Twenty-five miles of bad water lay before us—all rapids, shoals, bars, and boulders. boulder | American Dictionaryboulder noun[ C ] us/ˈboʊl·dər/ a large, rounded rock that has been smoothed by the action of the weather or water Examples of boulderboulder From about 128 km away, they hauled huge basalt boulders, from which to carve colossal heads, and nearly 100 other sculptures. Magnetic investigation of an amphibolite boulder found on the white line showed that a strong electric current indeed traversed the boulder. Adjacent to active border faults to the east and west, sheet- and debris flow-dominated alluvial boulder conglomerates accumulated. Many additional examples of boulders, tracks and boulders at the ends of tracks can be seen in later spacecraft images. Samples from the normal smooth surface of the gneiss boulder show that the surface has been ground and polished during glacial transportation. Their outlines are made of large boulders and their interiors are filled with heat-radiating quartz and quartzite river cobbles. This suggests that the quarrying might have involved a process of splitting large exposed boulders and selecting appropriate blocks. Villagers and farmers at group meetings indicated their understanding of village boundaries with reference to features such as trees, boulders and road junctions. The breccia contains a variety of boulders, dominated by vesicular basalt and phonolitic lavas. Plucking may effectively erode the welljointed thick basalt bed, resulting in boulders the size of which depends on the bedding and joints of the basalts. The next stratum is the layer of limestone boulders that seals the deposit inside the pit. Quaternary deposits are represented largely by modern cryological regoliths (ranging from coarse boulder to detritus-loamy regoliths). The sight of the boulder is an original impression. The substrate was composed mainly of cobbles at the study riffles, although boulders were common in the stream at greater altitudes. The underlying rock is massive granite, which has been exposed to form outcrops and boulders throughout the area, with grass and trees between them. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Collocations withboulderboulderThese are words often used in combination with boulder. Click on a collocation to see more examples of it. granite boulder The earlier parts of the castle constructions are characterised by heavy graniteboulder constructions, but with ever more refined details in later periods. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. huge boulder He changes into his costume and flies up to the volcano, catching a hugeboulder hurtling toward the town and flinging it into the ocean. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. large boulder By the roadside as one leaves the town there is a largeboulder on which the figure "22" is inscribed in large characters. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. See all collocations with boulder |
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