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A metro is a city railway made for short, frequent trips, usually running under the streets in tunnels, then coming up where the city thins out. Paris made the word famous: métro is a short form of métropolitain, from a name that meant “the city’s own railway”, itself a translation of London’s Metropolitan Railway, the earliest piece of what became the Underground.
A metrometro is a city railway是一種城市鐵路，made for short, frequent trips設計來給短程、頻繁的通勤用——usually running under the streets in tunnels通常在街道底下的隧道裡跑，then coming up where the city thins out然後在城市比較稀疏的地方冒出地面。Paris made the word famousParis讓這個字出名：métro is a short form of métropolitainmétro是métropolitain的簡稱，from a name that meant "the city's own railway"來自一個意思是「這座城市自己的鐵路」的名字，itself a translation of London's Metropolitan Railway而這個名字本身翻譯自倫敦的Metropolitan Railway，the earliest piece of what became the Underground也就是後來Underground最早的那一段
London more often says Underground or the Tube; New York says subway. English still uses metro for the same kind of system in many cities.
London more often says Underground or the TubeLondon比較常說Underground或the Tube；New York says subwayNew York則說subway。English still uses metro for the same kind of system in many cities英文在很多城市裡還是用metro來指同樣類型的系統
Though actually, the trains are not always under the ground. ’s system is a metro in English, but large parts run above the streets or on raised tracks. People stretch the word to any fast city train with its own tracks, not buses stuck in traffic.
Though actually不過其實，the trains are not always under the ground列車不一定都在地底下。Taipei's system is a metro in English台北的系統在英文裡就是a metro，but large parts run above the streets or on raised tracks但有很大一部分是在地面上或高架軌道上跑。People stretch the word to any fast city train with its own tracks人們把這個字延伸用到任何有自己軌道的快速城市列車，not buses stuck in traffic而不是塞在車陣裡的公車
It is an everyday, slightly international word; in Taiwan, English speakers often say MRT for the local system.
It is an everyday, slightly international word這是個日常、帶點國際感的字；in Taiwan, English speakers often say MRT for the local system在台灣，講英文的人常常用MRT來指當地的系統
組成From French métro, a clipping of métropolitain, from Greek mētēr “mother” + polis “city”. In English it is also a clipping of metropolitan.
同家族的字
- metropolitanmetro is the short form; both belong to the big city
- metropolissame Greek pieces: “mother” + “city”
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。
Metroname
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A city in Lampung, Indonesia.
metronoun詞源 1/ˈmɛtɹəʊ/
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A rapid transit rail transport system, or a train in such systems, generally underground and serving a metropolitan area.
- He is going to the stadium by metro.
- Recalling that Davide Lungo returned the van at the airport, Pizo descended the nearby stairs to the underground metro, and boarded the next metro stopping there.
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An urban rapid transit rail transport system, normally with lighter track and light trains (i.e. an S-Bahn or similar), or a train in such systems.
- Informs how long the passenger has to wait for the next metro
- With the weather clear and warm for a change, I decided to catch the next metro to the outskirts of town by myself.
metronoun詞源 2/ˈmɛtɹəʊ/
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A metropolitan area.
- In an age of persistently high inequality, work in high-cost metros catering to the whims of the wealthy—grooming them, stretching them, feeding them, driving them—has become one of the fastest-growing industries. […] Relationships between the classes, once mediated through the household, are now managed through an app that serves a large metro area.
- What was the least expensive of the 153 ZIP codes? 72758 (Benton County, Ark.), with a median price of $408,403. The area includes Rogers, a growing metro and home to the first Walmart store.
metroadj詞源 2/ˈmɛtɹəʊ/
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metropolitan
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。