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Asthma is a long-term condition of the lungs. From time to time the tubes that carry air get tight, swollen, and sticky, so breathing becomes hard.
Asthma氣喘 is是 of the lungs肺部的 a long-term condition一種長期疾病，the tubes that carry air裡面運送空氣的管子 from time to time有時候 get tight, swollen, and sticky會變緊、腫、黏，so所以 breathing呼吸 becomes hard變得困難。
A person may wheeze (a thin whistling sound), cough, feel tight in the chest, or get out of breath — after running, in cold air, with dust or smoke, or when they have a cold.
A person一個人 may可能會 wheeze (a thin whistling sound)發出咻咻聲（一種細細的哨音）、cough咳嗽、feel tight in the chest覺得胸口緊，or get out of breath或喘不過氣——after running在跑步之後、in cold air在冷空氣中、with dust or smoke遇到灰塵或煙、or when they have a cold或感冒的時候。
It is not a you catch from someone the way a cold is, though a cold can set an attack off. It is very common, including in children.
It它 is not不是 the way a cold is像感冒那樣 a germ you catch from someone會從別人身上傳染的病菌，though不過 a cold感冒 can set an attack off可能會誘發發作。It它 is very common非常常見，including in children包括在兒童身上。
Many people live ordinary lives with an , a small device you breathe medicine from.
Many people很多人 with an inhaler靠吸入器 live ordinary lives過著正常生活，a small device you breathe medicine from一種你可以從中吸入藥物的小裝置。
An attack can still be dangerous if it is not treated, so “I have asthma” is ordinary medical English, not a rare or old-fashioned word. Doctors have not replaced it with a newer everyday name.
if it is not treated如果沒有治療 An attack發作 can still be dangerous仍然可能很危險，so所以 "I have asthma"「我有氣喘」 is ordinary medical English是很普通的醫學英語說法，not a rare or old-fashioned word不是罕見或過時的詞。Doctors醫生 have not replaced it with a newer everyday name沒有用更新的日常說法取代它。
組成From Greek ἆσθμα, “hard, panting breathing.” Middle English wrote it asma. In the 1500s people added th in the spelling to look more like the Greek — but we still do not say the th.
同家族的字
- asthmaticasthma + -ic: of asthma, or a person who has it
原始詞典資料1 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
asthmanoun/ˈasmə/
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medicinepathologysciencesA long-term respiratory condition, in which the airways may unexpectedly and suddenly narrow, often in response to an allergen, cold air, exercise, or emotional stress. Symptoms include wheezing, shortness of breath, chest tightness, and coughing.
- ...but rheumatism is a vulgar complaint, and would sink even a ducal coronet—the very lowest people have it. I question if there is a workhouse in Great Britain exempt from it. Neither is there one free from asthma, and yet all the world knows a royal duke suffers from it as much as a coalheaver might do;...
- "He kind of spat," said Piggy. "My auntie wouldn't let me blow on account of my asthma. He said you blew from down here." Piggy laid a hand on his jutting abdomen.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。