以太网被设计成简单、廉价且能够处理广泛应用的网络。
The pursuit of science is not a luxury but a necessity for the survival of mankind.
The best preparation for tomorrow is doing your best today.
Forests are not just carbon sinks—they are life sources.
统计学家不能逃避理解他所应用或推荐的过程的责任。
当没有人相信你的时候,你必须相信自己。