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preludial    
a. 序言的,序幕的

序言的,序幕的

Preludial \Pre*lud"i*al\, a.
Of or pertaining to a prelude; of the nature of a prelude;
introductory. [R.]
[1913 Webster]


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  • Mayo Clinic Q and A: Nasal mucus color — what does it mean?
    Both viral and bacterial upper respiratory infections can cause similar changes to the type and coloration of nasal mucus During a common cold, nasal mucus may start out watery and clear, then become progressively thicker and more opaque, taking on a yellow or green tinge This coloration is likely due to an increase in the number of certain
  • Mayo Clinic Q A: Chronic sinusitis symptoms resemble a cold, but last . . .
    In chronic sinusitis, the lining of sinus cavities, called mucosa, becomes inflamed and swollen Chronic sinusitis symptoms usually do not include fever You may have thick, discolored nasal discharge, often green or yellow, along with nasal congestion You may feel dull pain or pressure in your cheeks, eyes, forehead or the back of your head
  • Chronic Bronchitis Involves Cough that Persists for Years and Produces . . .
    Since smoking is the most common cause, current smokers should quit In some people who develop COPD, the bronchial inflammation of chronic bronchitis may persist even after a smoker quits Typically, though, once a person stops smoking, the cough and the mucus production recede over time, although it may take several months
  • When is a cough a concern? - Mayo Clinic News Network
    Talk with your healthcare team if you start coughing up thick, green to brown sputum with fevers and chills If you have chest pain or feel like you can't breathe, call 911 Is a cough always a sign of illness? Coughs are most notably known as a sign of a problem in your body However, a cough can be a more straightforward issue
  • Treating Sinus Infections Without Antibiotics - Mayo Clinic News Network
    Dr Conway suggests drinking warm beverages to help loosen and drain mucus build up Warm water and tea are among the most popular and effective choices Don’t forget to take breaks to breathe in warm, moist air from a shower or kettle steam These will also have a similar effect as the warm beverages in fighting mucus buildup
  • Mayo Clinic Q and A: Is it allergies or a sinus infection?
    Itchiness is rarely a symptom of a sinus infection Contrary to popular belief, the color of your mucus does not help tell the difference between allergies or sinus infections Given that you have noted seasonal allergies, pay attention to the timing of your symptoms This also may help decide if they likely are caused by allergies
  • What causes gastrointestinal bleeding and how serious is it really?
    Gastrointestinal (GI) bleeding is a symptom of a disorder in your digestive tract The blood often appears in stool or vomit but isn't always visible, though it may cause the stool to look black or tarry The level of bleeding can range from mild to severe and can be life-threatening Sophisticated imaging technology, when needed, […]
  • Cough That Lasts May Be Sign of Underlying Problem
    Coughing is a normal reaction to irritants in your respiratory system Coughing forcefully expels foreign bodies, mucus and other irritants, such as pollution, from your throat and clears them from your airway However, when a cough lasts too long, it may be a sign of an underlying problem or disease Moreover, coughing itself becomes a problem
  • Mayo Clinic Q and A: Sinusitis and treatment options
    A headache also is common, as is tooth pain Also, you may have thick, clear, yellow or greenish mucus from the nose (runny nose) or down the back of the throat (postnasal drainage) A change in mucus color alone does not indicate bacterial infection The common cold mostly causes acute sinusitis
  • Home Remedies: 4 steps to stop a nosebleed - Mayo Clinic News Network
    Most nosebleeds aren't serious and will stop on their own or by following self-care steps Seek emergency medical care if nosebleeds: Follow an injury, such as a car accident Involve a greater than expected amount of blood Interfere with breathing Last longer than 30 minutes even with compression Occur in children younger than age 2 Don't […]





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