从踏实肯干的状态，到知责图进的心态，他们呈现“年轻态”。
Environment management，更多细节参见91视频
。关于这个话题，夫子提供了深入分析
"countDelta": -1，更多细节参见爱思助手下载最新版本
As for specs, Mark Gurman has suggested that it'll be getting an upgrade to the A19 chip, which is nice. Also, it could be getting MagSafe support. That sounds like an iterative upgrade, but the price is expected to remain steady at $599.