单词：tunnel ventilation test
单词：tunnel ventilation test 相关文章
Lesson 64 The Channel Tunnel海峡隧道 First listen and then answer the question. 听录音，然后回答以下问题。 Why was the first tunnel not completed? In 1858, a French engineer, Aime Tho
新概念英语第二册
【句子对照】 I ran a marathon last week. It was so long and I was so tired. I didn't really feel like there was a light at the end of the tunnel until I saw the finish line. 我上周参加了马拉松赛跑。路程太长了，我非常地累，直到看到终点线，我才感觉有一
俚语口头禅
chimney connect continent double draw in European fear in the centre of invasion officially port put forward sea level serve as tunnel ventilate ventilation
新概念英语第二册单词MP3
Elon Musk Shows Off High-Speed, Underground Tunnel Businessman Elon Musk has demonstrated part of a planned high-speed, underground transportation system in California. Musk is best known for founding electric carmaker Tesla and aerospace company Spa
2018年VOA慢速英语(十二)月
The idea is to build five major ventilation corridors, running from northern suburban areas to the south. They would be created by connecting Beijing's parks, rivers, lakes, and highways along with the capital's green belts, and possibly also by limi
2016CRI中国国际广播电台