苹果

píng guǒ apple; CL:個|个[ge4],顆|颗[ke1]

APP 签名

qiān míng to sign (one's name with a pen etc); to autograph; signature

常见

cháng jiàn commonly seen; common; to see sth frequently

安全问题

ān quán wèn tí safety issue; security issue

Telegram:@ltesign011fbm