跨: to step across, to stride over, to straddle, to span...
旅行: to travel, journey, trip...
劣势: inferior, disadvantaged...
杀毒: to disinfect, (computing) to destroy a computer virus...
实现: to achieve, to implement, to realize, to bring about...
激发: to arouse, to stimulate, (physics) to excite...
关头: juncture, moment...
幸存: to survive (a disaster)...
废物: rubbish, waste material, useless person...
形形色色: all kinds of, all sorts of, every (different) kind of...