Faster than sound精选pptsoundFaster than sound n.声音 sound n.任何声音都可以 voice n.人的声音 noise n.和周围不和谐的声音,噪音 v.听起来 sound like听起来像He sounds like a little boy.That sounds good.adj.等于reasonable 合理的,讲道理的，（身体）好的His body was still sound.I have a piece of sound advice.soundly adv.香甜的sleep soundly精选pptexcitement n.激动,兴奋 A lot of cars entered for this race last year and there was a great deal of excitement just before it began.to ones excitement 令某人激动的是To everyones excitement,though it was very difficult,he won t
