hen Qiunan."Good morning, brother-in-law!" Qin Yufei greeted with a smile."Good morning, Yufei!" Ling Hao responded with a smile and then asked, "Are you at work now, Yufei""I'm studying in Jianghai C..."ver for its owner, capable of sending out distress signals at any time and location. Even when the battery runs out, the system can still track its location."He...he's just..." He cursed.Looking at th...