BART is the name of the public railway in the San Francisco Bay Area, short for Bay Area Rapid Transit. People say it as one word, Bart, not letter by letter.

BART is the name of the public railway in the San Francisco Bay AreaBART是舊金山灣區大眾運輸鐵路的名稱 short for Bay Area Rapid Transit是Bay Area Rapid Transit(灣區捷運)的縮寫。People say it as one word, Bart大家會把它當一個字唸，唸成Bart not letter by letter不會一個字母一個字母拼

It is the region’s metro: trains that take you between San Francisco, Oakland, Berkeley, the airport, and other towns around the bay. Part of the system runs underground, including a famous tunnel under the water between San Francisco and Oakland; other stretches run above ground.

It is the region's metro它是這個地區的捷運系統 trains that take you between San Francisco, Oakland, Berkeley, the airport, and other towns around the bay列車帶你往返舊金山、奧克蘭、柏克萊、機場，還有灣區周邊其他城鎮。Part of the system runs underground系統有一部分是在地底下跑的 including a famous tunnel under the water between San Francisco and Oakland包括一條在舊金山和奧克蘭之間、有名的海底隧道 other stretches run above ground其他路段則是在地面上

Locals talk about “taking BART” the way Taipei people talk about taking the MRT. It is a proper name, so you write it in capitals.

Locals talk about "taking BART"當地人會說"taking BART"(搭BART) the way Taipei people talk about taking the MRT就像台北人講「搭捷運」一樣。It is a proper name這是一個專有名詞 so you write it in capitals所以要寫成大寫

You will meet it in travel English, news, and stories set in northern California — not as a general word for any subway. It has nothing to do with the cartoon boy named Bart, though visitors make that joke all the time.

You will meet it in travel English, news, and stories set in northern California你會在旅遊英文、新聞、還有以北加州為背景的故事裡遇到它 not as a general word for any subway而不是拿來泛指任何一種地鐵的通用字。It has nothing to do with the cartoon boy named Bart它跟卡通裡那個叫Bart的男孩一點關係都沒有 though visitors make that joke all the time不過遊客老是拿這個開玩笑