what does "referral" mean on earth?

Hi,dear mylotters,when somebodies discuss how to make money in their postings,they often mention a word"referral",what does it mean on earth?please explain it in details,many thanks.

how can i access the youtube to view some good vedios in china?

hi,dear mylotters.i've been having trouble getting on youtube web to view some useful video,of course the content has nothing to do with the politics,but the government has blocked all of it's...

Are all of these words the same?

hello,my friends.Could you tell me the differenc among 'dais''podium''rostrum'?thanks

what is the difference betwen'cloak'and'cape"?

hi,dear,i don't know the difference betweeen'cloak'and'cape",could you help me?thanks

what do you call this place?

Hello, i climbed a mountain yesterday and I arrived at a place where there are many rocks,what do u call this kind of place in english? see my attached picture