ambul-ambul=walk,表示“行走,走路”

ambulance

//n.救护车,流动医院(ambul+ance→走的东西→救护 车)

ambulant

//adj.走动的,流动的(ambul+ant)

circumambulate

//n.环行,绕…而行(circum 绕圈+ambul+ate→绕 着走)

somnambulate

//梦游,梦行(sonm 睡+ambul+ate→睡着走→梦 游)

perambulate

//游历,巡游(per 到处+ambul+ate→到处走遍→ 游历)