Walk until your feet bleed,And then keep walking这是什么意思

Walk until your feet bleed,And then keep walking这是什么意思 keep walking ,and you will get to the panda house .keep walk just-Keep-walking是什么意思 keep walking是什么意思? Keep reaching for the star,and keep your feet on the ground中 keep your eyes on the stars and your feet on the ground. keep your eyes on the stars and your feet on the ground keep walking and keep on walking 意思分别 until then请问是什么意思呀, keep your feet shoulder length apart Keep your feet on the ground Keep trying until sucess是什么意思