What is "Honorary Doctor of Letters degree"?

What is Honorary Doctor of Letters degree? 改错:What is she do? 改错 what is she do? What is that you do? what do you name what is you honorary / glorious区别 honorary research fellow是什么意思 HONORARY CREDENTIAL怎么读 This is what I should do.Is what I honorable和honorary的区别1.He is the-----chairman of the writer's Union .此处填honourable.2.Henry wasn't paid because he was the -----secretary of association.此处填honorary.为什么呢? what do you do when (it is raining)?还是what do you do when (it rains)? Do you think that what is happiness do you know what--------(it)name is Do you know what this is? what's is Tom's uncle do? What do you mean is this chinese? what is mike going to do Do you know what the answer is?