英语演讲稿范文参考
Schoolmates: Whenyoulookthelovableanimatedcartoon,playsisinaste whuman"scomputergames,ridesthefasttrain,isanswering transoceanictelephonetime,......Notonlyyourmightonc erealizethesciencethestrength,thesciencechangedthis world,alsochangedourlife,thesc...