this username is available什么意思?

this username is available! this username is available什么意思? Please choose a unique username for this website.This username is public and will appear on your p The username is already taken username This username has already been used是什么意思 The username chosen is already being used. The username or password provided is incorrect. Your username or password is incorrect什么意思? The username or password you entered is incorrect什么意思 Error:The username is already taken.中文意思 Sorry,your selected username 1591141479 is taken啥意思 英文名AVA ava是什么 Ava is going to visit the summer Palace.变一般疑问句 Ava is going to visit the summer Palace.变特殊疑问句 form1.username. The username you entered is already in use,please select an alternative.