一次车祸(A Traffic Accidnt)ystrday whn i was walking along th strt, i saw an old lady in front of m. sh wantd to cross th strt. all of a suddn, a bicycl ran against hr at a high spd.th old woman fll to th ground. th cyclist was vry frightnd and ran away. i hurrid to hlp th lady up, calld a taxi and snt hr to th narst hospital. luckily sh was not badly hurt.w liv in a larg city which is lik a big family. w shouldcar for ach othr.