| 单词 | barrier |
| 释义 | barrier (once / 329 pages) n Barriers are walls, either physical or metaphorical. They can block movement — the Great Wall of China was a barrier to block invading forces from entering. A window shade is a light barrier. Failing English is a barrier to getting into Harvard. When people are being excluded from joining a clique, you could say that the clique has erected a social barrier. When fighter jets fly faster than the speed of sound, they break through what feels like a wall in the sky called the sound barrier. The Green Monster at Fenway Park keeps Boston Red Sox fans from being able to watch games from outside the stadium — it's a barrier to sight. But when line drives hit the Green Monster, bouncing the ball back into left field, the Green Monster acts also a barrier to easy home runs. WORD FAMILYbarrier: barriers USAGE EXAMPLESObstacles on the internet, just like barriers to trade, are easy to decry but hard to prevent. Economist(Nov 03, 2016) The teams play mostly in conventional gyms set up with temporary barriers. New York Times(Jan 02, 2017) "Those are new," he said, pointing to the barriers just before 6 a.m.. Los Angeles Times(Jan 02, 2017) 1n a structure or object that impedes free movement Exp|Hypo|Hyper Aswan High Dam one of the world's largest dams on the Nile River in southern Egypt Glen Canyon Dama large dam built in 1964 on the Colorado River in Arizona Hoover Dama large dam built in 1933 on the Colorado River in Nevada Dipylon gatea gateway to the west of ancient Athens near which a distinctive style of pottery has been found balusters, balustrade, banister, bannister, handrail a railing at the side of a staircase or balcony to prevent people from falling barricadea barrier (usually thrown up hastily) to impede the advance of an enemy breakwater, bulwark, groin, groyne, jetty, mole, seawalla protective structure of stone or concrete; extends from shore into the water to prevent a beach from washing away bulwarka fencelike structure around a deck (usually plural) crash barriera strong protective barrier that is erected around a racetrack or in the middle of a dual-lane highway in order to reduce the likelihood of severe accidents dam, dike, dykea barrier constructed to contain the flow of water or to keep out the sea fence, fencinga barrier that serves to enclose an area fender, winga barrier that surrounds the wheels of a vehicle to block splashing water or mud grate, gratinga barrier that has parallel or crossed bars blocking a passage but admitting air hurdlea light movable barrier that competitors must leap over in certain races movable barriera barrier that can be moved to allow passage rail, railinga barrier consisting of a horizontal bar and supports revetmenta barrier against explosives barricade, roadblocka barrier set up by police to stop traffic on a street or road in order to catch a fugitive or inspect traffic etc. starting gate, starting stalla movable barrier on the starting line of a race course backstop(baseball) a fence or screen (as behind home plate) to prevent the ball from traveling out of the playing field bar(law) a railing that encloses the part of the courtroom where the judges and lawyers sit and the case is tried chainlink fencea fence of steel wires woven into a diamond pattern chicanea movable barrier used in motor racing; sometimes placed before a dangerous corner to reduce speed as cars pass in single file doora swinging or sliding barrier that will close the entrance to a room or building or vehicle fife railthe railing surrounding the mast of a sailing vessel gatea movable barrier in a fence or wall grille, radiator grillegrating that admits cooling air to car's radiator hatcha movable barrier covering a hatchway hedge, hedgerowa fence formed by a row of closely planted shrubs or bushes milldamdam to make a millpond to provide power for a water mill mudguard, splash guard, splash-guarda curved piece above the wheel of a bicycle or motorcycle to protect the rider from water or mud thrown up by the wheels paling, picket fencea fence made of upright pickets rail fencea fence (usually made of split logs laid across each other at an angle) guardrail, safety raila railing placed alongside a stairway or road for safety stone walla fence built of rough stones; used to separate fields taffrailthe railing around the stern of a ship walla masonry fence (as around an estate or garden) weira low dam built across a stream to raise its level or divert its flow weira fence or wattle built across a stream to catch or retain fish impediment, impedimenta, obstructer, obstruction, obstructor any structure that makes progress difficult 2n anything serving to maintain separation by obstructing vision or access Hypo|Hyper bar a submerged (or partly submerged) ridge in a river or along a shore blood-brain barriera mechanism that creates a barrier between brain tissues and circulating blood; serves to protect the central nervous system curtainany barrier to communication or vision sand bar, sandbara bar of sand mechanism a natural object resembling a machine in structure or function 3n any condition that makes it difficult to make progress or to achieve an objective intolerance is a barrier to understanding Syn|Hypo|Hyper roadblock ideological barrier a barrier to cooperation or interaction resulting from conflicting ideologies language barrierbarrier to communication resulting from speaking different languages iron curtainan impenetrable barrier to communication or information especially as imposed by rigid censorship and secrecy; used by Winston Churchill in 1946 to describe the demarcation between democratic and communist countries bamboo curtainan ideological barrier around communist China especially in the 1950s and 1960s Jim Crow, color bar, color line, colour bar, colour linebarrier preventing blacks from participating in various activities with whites obstacle, obstruction something immaterial that stands in the way and must be circumvented or surmounted |
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