| 词汇 | overcast |
| 释义 | overcast adjective uk /ˈəʊ.və.kɑːst//ˌəʊ.vəˈkɑːst/ us /ˈoʊ.vɚ.kæst/ with clouds in the sky and therefore not bright and sunny: 阴天的，多云的;布满阴云的 The sky/weather was overcast.天空／天气阴沉沉的。 a depressing, overcast winter morning沉闷、阴暗的冬日早晨 Synonyms cloudy sunlessliterary Opposites cloudless sunny(BRIGHT) Precipitation: clouds, dew, fog & steam billow brume chemtrail cirrus cloud-capped cloudily cloudlessly haze haze over lowering misty moisture nimbus pall Scotch mist steam (something) up steamily sub-visible vapour trail vog You can also find related words, phrases, and synonyms in the topics: Describing bad weather overcast verb uk /ˌəʊ.vəˈkɑːst/ us /ˌoʊ.vɚˈkæst/past tenseovercast | past participleovercast overcastverb (CLOUDS)[ T ] (of clouds) to cover the sky so it is not bright and sunny: （云）遮天蔽日 Thick clouds overcast the sky.厚厚的云层笼罩着天空。 The qualities of light backlit black light brightly brilliantly coruscating dazzlingly dullness floodlit incandescent lambency luminescence luminosity lustrously non-fluorescent shimmering spangly sun-drenched ultra-luminous undulled unshaded overcastverb (SEWING)[ I or T ] to stitch over the edge of a piece of cloth to stop the loose threads from separating: 包边缝，绕边缝 Finish off the hem by overcasting.用包边缝完成下摆。 Knitting & sewing appliqué appliquéd Aran Bargello baste handknit handknitted hank hem intarsia quilting reknit resew rib run something up running stitch sampler seam sew stitch overcast | American Dictionaryovercast adjective us/ˈoʊ·vərˌkæst, ˌoʊ·vərˈkæst/ cloudy and therefore not bright and sunny: an overcast sky/day Examples of overcastovercast The quality of light is indeed external and overcast, a quality maintained even without sufficient natural light. If a building can be adequately lit on an overcast day, then the blue sky can provide twice as much light. All indirect measurements were only taken during uniformly overcast sky conditions or after sunset (mostly after 1700 h). The following night was overcast, pitch black and with no stars visible. The natural light in the reading room is diffuse and directionless and, like the overcast sky, the light source is never seen directly. On an overcast day, the light is very diffused and is about 5% of direct sunlight. Trapping was carried out under similar general climatic conditions, avoiding rainy or heavily overcast days. Readings were taken during overcast or cloudy conditions when diffuse light was predominant, as required by this method. All photographs were taken under uniformly overcast sky conditions to minimize reflections in the images. On several overcast days, observations were continued throughout the day. An overcast sky gives the city a sombre appearance, as if brooding on an uncertain future. The albedo of a complete overcast sky ranges from 44 to 50 per cent for cirrostratus to 90 per cent for cumulonimbus. The rooflights exploit the fact that an overcast sky is three times as bright at the zenith as at the horizon, enabling less glazing for the same amount of light. The photographs are especially a treat for those who have been in this area and experienced considerable overcast skies, rain, and fog, obliterating the spectacular scenery. They restrict the daylight of the room behind and unless they are allowed to get very cold on cold overcast days they will use substantial amounts of heat. See all examples of overcast 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. |
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