Usernames can only use the characters a-z,0-9 and underscore
Usernames can only use the characters a-z,0-9 and underscore
username contains invalid characters.it may only use a-z,0-9
英语高手帮忙解决下Within 15 characters, a-z A-Z 0-9 ]Do not use hyphe
Your password contains invalid characters.You may only use a
The username may only consist of characters and numbers and
The username may only contain letters and numbers (A-z,0-9)
是I only can use a little English.还是.I can only use a little
Usernames must be made of only lower-case letters and这句话甚么意思
1.Your username can only contain letters A-Z or numbers 0-9
Many,many people use it,not only in English and the U.S.A.,b
Can you open the tin _____a tin-opener.A.use B.with C.and D.
lt is a hard and small thing.you can use it to open the door