walk down the stairs的stairs为什么不能用ladders

walk down the stairs的stairs为什么不能用ladders walk down the stairs quickly.） walk down stairs quickly Don't take the lift,____(walk)down the stairs quickly. she rushed down the stairs we walk quickly down stairs must the 怎么连词成句? The apples are f___ down the stairs or just heip them walk down their stairs down,are ,the,falling,apples,stairs. some students may run down the stairs 对run down the stairs提问? walk down the road. walk down the the apples are falling down the stairs 改否定 The apple are falling down the stairs的意思 what goes up and down the stairs without moving? 请用rush down the stairs造三个英语句子 go downstairs和go down the stairs都对吗? The apples are falling down stairs这句话对吗