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(A) the transit
(B) the camp
(C) the carriage
(D) the chamber

不知道對不對 是好意啊XD 想說大家都方便一點
google翻譯後修正了一些,希望大家都能英文進步~

Don't be alarmed if fellow passengers start stripping off  after boarding a metro train in Taipei. Chances are they think they've found a swimming pool inside  the carriage  . To celebrate being the host city of Universiade 2017--the Olympics for international university athletes--the Taiwanese capital has transformed a six-car train into six different sports venues  --a running track, a soccer pitch, a baseball field, a basketball pitch, a field for throwing sports and a swimming pool. And the eye-popping 3D artworks have inspired a few  commuters to  dive in.

 "We hope to bring sports closer to their daily life," says a spokesperson for the city's Department of Information and Tourism. It is a fun campaign  to raise awareness about sport in general among Taiwanese and get the public to get involved in the games.

如果同行乘客在台北乘坐地鐵列車後開始脫衣服，請不要驚慌。 他們認為他們在車廂內找到了一個游泳池。 為慶祝成為2017年大運會主辦城市 - 國際大學運動員奧運會 - 台灣首都將六輛火車改造成六個不同的體育場館 - 跑道，足球場，棒球場，籃球場 球場，投擲運動場和游泳池。 令人瞠目結舌的3D藝術作品激發了一些乘客的興趣(投入)。

“我們希望讓體育更貼近他們的日常生活，”該市信息和旅遊部發言人說。 這是一項有趣的運動，旨在提高台灣人對體育的認識，並讓公眾參與比賽。

Don't be alarmed if fellow passengers start stripping off  after boarding a metro train(捷運車廂) in Taipei. Chances are they think they've found a swimming pool inside  the carriage  . 

the transit過境

the camp營地

the carriage運輸

the chamber密室

因為上文提到 metro train(捷運車廂) ，故推斷下文講到the carriage運輸