词数:476阅读难度:★★★☆☆建议阅读时间:6分钟Facebook CEO Mark Zuckerberg describes virtual reality(VR)as the"platform of tomorrow".To back that opinion up,his company in March bought the small firm Oculus VR for$2 billion,sparking a craze around VR that hasn’t been seen in years.There’s no arguing that the purchase puts