English jokes, please translate into Chinese.

An elephant said to a mouse, "There is no doubt that you are the smallest and most useless thing I have ever seen."

"Please say that again. Let me take it off. " Said the mouse. "I will tell a flea what I know."

for me

An elephant said to a little mouse, "You are undoubtedly the smallest and most useless thing I have ever seen."

"Please say it again and let me write it down." Said the mouse. "I want to tell it to a flea I know.