英语翻译It is said that spaceships can travel at half the speed

英语翻译It is said that spaceships can travel at half the speed travel at half the speed of light 英语翻译The high speed of air travel is gained at a cost. 英语翻译the best that we can be said for 2009 is that it could h it is said that the cinema can ___1500people The car is moving ___ such___ high speed that it can't stop It is said that about half of the people in Chana.翻译 It is said that the 英语翻译(1)Because of their inventions,we can travel at a speed will what if happen I travel can the at of speed light?（连词成句 几个英语选择题.1.what would it be like to travel at the speed of __ What would it be like to travel at the speed of light? 翻译