Dear Baiguang Liu,
You recently made a request to reset your Apple Account password. Please click the link below to complete the process.
If you did not make this change or you believe an unauthorised person has accessed your account, you should go to iforgot.apple.com to reset your password immediately. Then sign into your Apple Account account page at https://account.apple.com to review and update your security settings.
Sincerely,
Apple Support