我国的高铁发展很快，通高铁的城市越来越多。但是在冬天，北方的严寒会干扰高铁运行，所以需要对高铁进行改进，以确保在低温下正常运行。

 6park.com
China debuts bullet train that can operate in extremely cold temperatures

■ debut /ˈdeɪbjuː/ v. 使首次亮相 6park.com
■ bullet /ˈbʊlɪt/ n. 子弹（bullet train指子弹头列车，也就是高铁） 6park.com
■ operate /ˈɒp(ə)reɪt/ v. 运营、运作

China has unveiled a new high-speed bullet train designed for extremely cold climates.

■ unveil /ʌnˈveɪl/ v. 揭幕、揭示

The CR400AF-G train, which can operate at speeds of up to 350 kilometers per hour in temperatures as low as -40 degrees Celsius, is part of the Fuxing series of high-speed electric multiple-unit trains developed and operated by the state-owned China State Railway Group.

■ degree Celsius /ˈselsiəs/ 摄氏度 6park.com
■ series /ˈsɪəriːz/ n. 系列（单数和复数都是series） 6park.com
■ multiple /ˈmʌltɪp(ə)l/ adj. 多个的、很多的 6park.com
■ state /steɪt/ n. 国家、政府

The train, rolled out in Beijing on January 6, will run on a new high-speed line connecting the Chinese capital with northeastern destinations including cities Shenyang and Harbin – the latter of which is famed for its annual snow and ice festival. But officials have yet to announce when the train will begin operations.

■ roll /rəʊl/ out 使……首次上市 6park.com
■ northeastern /ˌnɔːˈθiːst(ə)n/ adj. 东北的 6park.com
■ Harbin /hɑːˈbɪn/ n. 哈尔滨 6park.com
■ the latter /ˈlætə(r)/ 后者 6park.com
■ famed /feɪmd/ adj. 出名的 6park.com
■ official /əˈfɪʃ(ə)l/ n. 官员 6park.com
■ have yet to 还没有 6park.com
■ operation /ˌɒp(ə)ˈreɪʃ(ə)n/ n. 运营、运作（由operate加后缀-ion变成名词）

In a post on Chinese social media WeChat, the China Railway Beijing Group – part of the China State Railway Group Company – ran through several of the train's optimized（优化） components that aid its ability to withstand cold temperatures.

■ post /pəʊst/ n. （网上的）帖子 6park.com
■ media /ˈmiːdiə/ n. 媒体 6park.com
■ run through 快速过一遍 6park.com
■ component /kəmˈpəʊnənt/ n. 组成部分、组件 6park.com
■ aid /eɪd/ v. 帮助 6park.com
■ withstand /wɪðˈstænd/ v. 承受、经受

These include: bolts made with chromium-molybdenum alloy（合金） – a material that endures extremely low temperatures; silicone（硅酮） sealing strips, which prevent snow and ice from getting into the train body; temperature-resistant brake control devices; and stainless-steel pipes equipped with heating devices. The train also features a streamlined（流线型的） low-resistance design to help decrease energy consumption, and a lightweight aluminum alloy body.

■ bolt /bəʊlt/ n. 螺栓 6park.com
■ chromium 铬 6park.com
■ molybdenum 钼 6park.com
■ material /məˈtɪəriəl/ n. 原材料 6park.com
■ endure /ɪnˈdjʊə(r)/ v. 忍受、承受 6park.com
■ seal /siːl/ v. 密封 6park.com
■ strip /strɪp/ n. 条、条状物 6park.com
■ resistant /rɪˈzɪst(ə)nt/ adj. 不受……影响的（由resist加后缀-ant变成形容词） 6park.com
■ brake /breɪk/ n. 刹车装置、车闸 6park.com
■ device /dɪˈvaɪs/ n. 设备、装置 6park.com
■ stainless /ˈsteɪnləs/ steel /stiːl/ 不锈钢 6park.com
■ equip /ɪˈkwɪp/ v. 装备、配备 6park.com
■ feature /ˈfiːtʃə(r)/ v. 以……为特色、具有某种特点 6park.com
■ resistance /rɪˈzɪst(ə)ns/ n. 阻力（由resist加后缀-ance变成名词） 6park.com
■ consumption /kənˈsʌmpʃ(ə)n/ n. 消耗、消耗量 6park.com
■ lightweight /ˈlaɪtweɪt/ adj. 重量轻的 6park.com
■ aluminum /əˈluːmənəm/ n. 铝

In a report by state-owned newspaper China Daily, Zhou Song, director of the China Railway Beijing Group's bullet train center, offered an analogy to explain the new train's braking system: "If the train stops in Harbin for an hour, because of the extremely cold weather, the braking system can easily freeze if it stops moving for a while. The new system will enable the brakes to move from time to time even if the train stops, like a person who stamps his feet to keep warm in cold weather."

■ analogy /əˈnælədʒi/ n. 类比、比方 6park.com
■ brake /breɪk/ v. 刹车 6park.com
■ enable /ɪˈneɪb(ə)l/ v. 使得、使能够 6park.com
■ stamp /stæmp/ v. 跺脚

Today, China is home to the world's largest high-speed rail network, which stretches over 37,000 kilometers, and the fastest commercially operating train – the Shanghai maglev（磁悬浮）. Running at the top speed of 431 kilometers per hour, the train links Shanghai Pudong Airport and Longyang Road in the eastern side of Shanghai.

■ network /ˈnetwɜːk/ n. 网络 6park.com
■ stretch /stretʃ/ v. 延伸、伸展 6park.com
■ commercially /kəˈmɜːʃ(ə)li/ adv. 商业地（由commercial加后缀-ly变成副词） 6park.com
■ link /lɪŋk/ v. 连接、联系

This time last year, China unveiled a new 174-kilometer high-speed railway line connecting Beijing with 2022 Winter Olympics host city Zhangjiakou, cutting the travel time between the two from three hours to 47 minutes. The train running on that line is also part of China's Fuxing series and can run up to 350 kilometers per hour without a driver – said to be a world first.

■ host /həʊst/ n. 主人、东道主 6park.com
■ cut /kʌt/ v. 削减、减少

According to the China State Railway Group, 1,036 Fuxing bullet trains have been put into operation since 2017, when the series was launched.

■ launch /lɔːntʃ/ v. 推出（新产品等）