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An endemic disease or problem is one that is always around in a particular place, or among a particular group — it lives there, year after year, rather than arriving in a sudden wave and then leaving. A fever can be endemic in the ; a bad habit can be called endemic in a company if it is built in, not a one-week scandal. It is a formal word, common in medicine, news, and science.
An endemic disease or problem一個endemic的疾病或問題，is one that is always around in a particular place, or among a particular group是那種一直存在於某個地方或某個群體裡的——it lives there, year after year它年復一年待在那裡，rather than arriving in a sudden wave and then leaving而不是突然一波爆發然後又消失。A fever can be endemic in the lowlands熱病可以是低地endemic（地方性）的；a bad habit can be called endemic in a company一個壞習慣如果在公司裡根深蒂固，也可以說是endemic的，if it is built in, not a one-week scandal而不是一週就過去的醜聞。It is a formal word這是個正式的字，common in medicine, news, and science常用在醫學、新聞和科學裡。
Though actually, people mix it up with epidemic all the time. An epidemic is a sudden spread; endemic is almost the opposite idea: the problem is already at home there.
Though actually不過其實，people mix it up with epidemic all the time人們常常把它跟epidemic搞混。An epidemic is a sudden spreadepidemic是突然的擴散；endemic is almost the opposite ideaendemic幾乎是相反的概念——the problem is already at home there這個問題早就在那裡「安家落戶」了。
also call a plant or animal endemic if it belongs to one place and nowhere else — an endemic bird of Taiwan lives here, not on the next island. That sister sense is still about “belonging to this place.” As a noun, “an endemic” can mean an endemic disease, but the adjective is what meet most.
Biologists also call a plant or animal endemic生物學家也會把某種植物或動物稱為endemic（特有種），if it belongs to one place and nowhere else如果它只屬於一個地方、別的地方都沒有——an endemic bird of Taiwan lives here台灣的一種endemic鳥類就是住在這裡，not on the next island而不是在隔壁的島上。That sister sense is still about “belonging to this place.”這個相近的意思講的還是「屬於這個地方」。As a noun, “an endemic” can mean an endemic disease當名詞用的時候，an endemic可以指一種地方性疾病，but the adjective is what learners meet most但學習者最常遇到的是形容詞用法。
組成Greek en (“in”) + dêmos (“people”) + -ic: “among the people, at home there.” Possibly via French endémique. By surface, en- + demic.
原始詞典資料5 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。
endemicadj/ɛnˈdɛm.ɪk/
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Native to a particular area or culture; originating where it occurs.
- The endemic religion of Easter Island arrived with the Polynesian settlers.
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Peculiar to a particular area or region; not found in other places.
- Kangaroos are endemic to Australia.
- […] a continental northern Alaskan element, including a series of endemic species and disjuncts that have survived the Pleistocene glaciation in northern Alaska and thus represent relicts of the much warmer Tertiary […]
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Prevalent in a particular area or region, persistent within a population.
- Malaria is endemic to the tropics.
- 1998, Gillian Catriona Ramchand, Deconstructing the Lexicon, in Miriam Butt and Wilhelm Geuder, eds. “The Projection of Arguments” These problems are endemic to the theory of thematic roles as currently conceived, because the classification it implies simply does not correspond to legitimate linguistic semantic definitions.
endemicnoun/ɛnˈdɛm.ɪk/
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An individual or species that is endemic to a region.
- The species that appeared as a consequence were endemics; that is, they were found nowhere else in the world.
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A disease affecting a number of people simultaneously, so as to show a distinct connection with certain localities.
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。