男友太凶猛1v1高h,大地资源在线资源免费观看 ,人妻少妇精品视频二区,极度sm残忍bdsm变态

BBC Learning English 英語教學
 

文字稿:

This contraption may not look very impressive…

But when the bicycle-powered helicopter defied gravity, it caused great excitement.

Its flight only lasted 64 seconds and reached an altitude of 3.3 metres. Though it was a great achievement for the Canadian team, which spent 18 months designing the chopper.

They won a prize worth $250,000 from the American Helicopter Society.

The team hope to inspire the next generation of aviation pioneers.

Vocabulary 詞匯:

contraption 奇怪的裝置

defied gravity 飛起來

altitude 高度

chopper 直升機(非正式用語)

pioneers 先鋒,創始人

關注和訂閱

人氣排行
熱搜詞
 
精華欄目
 
Copyright ©
主站蜘蛛池模板: 贵州省| 陆丰市| 开原市| 千阳县| 全州县| 莒南县| 柳州市| 长海县| 凤城市| 新郑市| 兴和县| 榕江县| 福清市| 桦川县| 凤山县| 钦州市| 乌鲁木齐县| 嘉荫县| 永平县| 辛集市| 怀宁县| 宁陵县| 深圳市| 六盘水市| 阳曲县| 瑞昌市| 郯城县| 长汀县| 武汉市| 高安市| 宜兴市| 农安县| 海兴县| 六盘水市| 东安县| 新兴县| 松滋市| 乌拉特后旗| 永清县| 吴堡县| 清镇市|