5G不是4G的简单升级，而是通信技术的革命性变革。
The future belongs to those who can balance energy needs with environmental responsibility.
出自《魏源集·默觚下·治篇五》。三代以上，天都跟现在的天不一样，地都跟现在的地不一样，人也跟现在的人不一样，物也和现在的物不一样。
"I write for kids because I was a kid who needed books."