The difference between theory and practice is that in theory, there is no difference between theory and practice, but in practice, there is.
每天早上醒来,我都会对自己说:“活着就是一种幸福。”
A tree is a symbol of hope—rooted in the present, reaching for the future.
以太网是一种共享介质,其成功的关键在于其简单性。