1.Your username can only contain letters A-Z or numbers 0-9
1.Your username can only contain letters A-Z or numbers 0-9
The username may only contain letters and numbers (A-z,0-9)
Username can only contain letters,numbers and underscoress什么
Your nickname can only contain letters and numbers
Username must contain only letters and numbers.No special ch
英语翻译Username (letters and numbers Only)*PasswordPassword (ve
Passwords must contain only Latin letters and numbers是什么意思
Login must contain only letters ,numbers,and underscores
username should contain alphabets,numbers什么意思
username contains invalid characters.it may only use a-z,0-9
Your nickname must contain only latin symbols (a-z,A-Z),numb
Please enter a valid username (A-Z,a-z,0-9,-,_,