stephenhawking(斯蒂芬.霍金)
stephenhawkingstephenhawkingisoneofthefamousscientistsinthiscentury.heisnowwheelchairboundandunabletofeedhimselforgetinandoutofbedalone.buthehasrefusedtogiveintothecondition.nowheisregardedasoneoftheworld'sleadingauthoritiesoncosmology.lastyearhewasinvitedtochina.heimpresseduswithhisself-confident,humorousandwittyconversations.