时速用英文翻译是不是speed per hour

时速用英文翻译是不是speed per hour speed是不是等于speeding? His average speed had been 301 miles per hour.句子成分 The train traves at a speed of 80 kilometres per hour 向划线部分(at a speed向at a speed of 80 kilometres per hour 提问 his average speed had been 299 miles per hour这句话用的是过去完成被动时态吗 为什么要用被动形式呢? to increase speed 是不是也可以写成 increasing speed 英语里per...的意思是不是 每...per minus per metre 是不是用时注意什么 speed speed AMORE PER AMORE PER 用英语怎么说 he drives the car very fast and speed (l )is 6.5 kilometres per hour.怎么写 Although Campbell reached a speed of over 304 miles per hour,句子成分 A man ran 900 meters in 2 minutes.What was his speed in meters per second? his average speed had been 299 miles per hourhad been 是什么? Campbell was disappointed to learn that his average speed had been 299 miles per hour.句子成分 Maglev trains can travel at a speed of up t开头 430 kilometres per hour. 求：the average speed over the 8 miles is 33 miles per hour.怎么翻译. it seats about four people and has a top speed of over 600 kilometers per hour