她毫无戒心地打开了那封陌生邮件，结果电脑中了病毒。

She ___unsuspectingly opened the strange email and got a virus on her computer.

他毫无戒心地接受了陌生人的邀请，结果丢了钱包。

He ___unsuspectingly accepted the stranger's invitation and ended up losing his wallet.