短语 walk tall 意思是昂首挺胸，对自己的能力有信心，充满自信。
I can walk tall because I really am proud of my job as a nurse. I believe I can make a difference.
Making presentations can be scary. After I did them a couple of times my confidence really improved. Now I just go out and walk tall and enjoy them!
A tall tale 是指一个夸张荒诞的故事，不能让人相信。
My mate said he went to China and met Jet Li and they learned kung fu together and even shot a movie. But I don't believe him. He's full of tall tales.