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复数形式
coronas
1
日冕, 太阳的外层大气
the outer layer of the Sun's atmosphere, observable as a plasma halo during a solar eclipse
- During a total solar eclipse, the corona of the Sun becomes visible as a radiant halo around the moon.
在日全食期间，太阳的日冕会以月亮周围的光环形式变得可见。
- The corona's temperature is much higher than that of the Sun's surface, presenting a fascinating solar mystery.
日冕的温度比太阳表面高得多，呈现出一个迷人的太阳之谜。
- Solar missions, like NASA's Parker Solar Probe, aim to explore the corona up close and gather valuable data.
像NASA的帕克太阳探测器这样的太阳任务，旨在近距离探索日冕并收集宝贵数据。
- The corona's appearance during an eclipse offers a rare opportunity for amateur astronomers to observe and photograph this celestial phenomenon.
日食期间日冕的出现为业余天文学家提供了观察和拍摄这一天文现象的罕见机会。
- The corona's magnetic fields contribute to the formation of solar prominences and eruptions.
日冕的磁场有助于太阳 prominences 和喷发的形成。
同义词：
2
a long cigar with rounded or blunt ends
- He ordered a fine corona from the humidor.
- The cigar was a medium-bodied corona with a smooth draw.
- He preferred coronas over larger cigars for their balance of flavor.
- The box contained twelve hand-rolled coronas.
- She lit a corona and leaned back in her chair.
3
a projecting decorative molding or cornice forming the uppermost part of an entablature or wall, common in classical architecture
A corona is a decorative molding or horizontal band that typically appears at the top of a wall or column, often serving as a transition between the vertical and horizontal elements of a structure. In architecture, the corona can be seen in cornices or overhangs, helping to define the upper edge of a building or space. This feature is commonly found in classical architecture and adds visual interest, enhancing the overall design while providing a sense of completion to the structure. The corona can also help to protect the walls from rain and moisture.
- The sculptor restored the damaged corona on the temple facade.
- The ceiling's corona cast a subtle shadow along the edge.
- The building's corona was ornamented with carved leaves.
- The architect designed a simple corona for the cornice.
- Dust had gathered along the old wooden corona.
4
a ring or circle of light visible around a luminous body
- A faint corona appeared around the moon after the storm.
- Mist created a glowing corona around the streetlights.
- Pilots often see a colored corona around bright stars.
- The halo-like corona formed by diffraction was breathtaking.
- A corona of light outlined the figure in the fog.
5
an infectious respiratory disease caused by the SARS-CoV-2 virus
Corona, or COVID-19, is an infectious disease caused by the SARS-CoV-2 virus. It mainly spreads when an infected person talks, coughs, or sneezes, releasing saliva or mucus. Symptoms can vary widely but often include fever, cough, difficulty breathing, fatigue, and loss of taste or smell. While many people experience mild symptoms, others may develop serious complications, especially older adults and those with underlying health conditions. Prevention measures such as wearing masks, practicing good hand hygiene, and getting vaccinated help reduce the spread of the virus and protect individuals from serious illness.
- The spread of corona led to worldwide lockdowns.
- Millions were vaccinated to prevent severe corona infections.
- Travel restrictions were imposed to limit corona transmission.
- Researchers worked tirelessly to develop treatments for corona.
- The pandemic disrupted economies and education due to corona.