| 单词 | underground |
| 释义 | underground (once / 536 pages) advadjn WORD FAMILY underground: undergrounds+/foreground: foregrounds/ground: foreground, grounded, grounder, grounding, groundless, grounds, underground/grounder: grounders/grounding: foregrounding, groundings/groundless: groundlessly, groundlessness USAGE EXAMPLESTrains rolled ceremonially Saturday night, while dignitaries toasted underground. Washington Times(Jan 01, 2017) “The Underground Railroad” again tops the Pacific Northwest Booksellers Association fiction best-sellers list. Seattle Times(Jan 01, 2017) The project is basically an underground version of big outdoor projects that rely on the same principle. Washington Times(Jan 01, 2017) 1adv beneath the surface of the earth water flowing underground 2adv in or into hiding or secret operation the organization was driven underground 3adj under the level of the ground underground caverns Syn belowground subsurface beneath the surface 4adj conducted with or marked by hidden aims or methods underground resistance Syn clandestine, cloak-and-dagger, hole-and-corner, hugger-mugger, hush-hush, secret, surreptitious, undercover covert secret or hidden; not openly practiced or engaged in or shown or avowed 5n an electric railway operating below the surface of the ground (usually in a city) Syn|Hyper metro, subway, subway system, tube railroad, railroad line, railway, railway line, railway system line that is the commercial organization responsible for operating a system of transportation for trains that pull passengers or freight 6n a secret group organized to overthrow a government or occupation force Syn|Hypo|Hyper resistance Maquis the French underground that fought against the German occupation in World War II revolutionary group a political unit organized to promote revolution |
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