So we need to find smarter, more systems-based, innovative solutions to these problems, So imagine if, when you bought your mobile phone, your new one because you replaced your old one -- after 15 to 18 months is the average time that people replace their phones, by the way — so if we're going to keep this kind of expedient mobile phone replacing, then we should be looking at closing the loop on these systems.
所以如果想要可持续地生活在世界上 我们需要找到更聪明、更系统的办法 来解决这些问题。 想象一下，当你买手机时 要替换你旧的那个 — — 顺便说一句，人们替换手机的 平均时间是15 至 18 个月 — — 所以如果我们要继续这种方便的 手机更换方式，那么我们应当 着眼于结束这些系统上的循环。