One night two years ago, stuck at home due to Covid-19, I was tired of overcoming the anxiety of waiting for my Ph.D. application results and revising a paper over and over again. The sudden email from Duke University broke the restless night and told me I had been admitted to the Duke ECE Ph.D. program with a full scholarship. At that very instant, the long-lost happiness, excitement, and relief flooded into my heart. My parents were proud of me and shared the good news with others. For an ordinary Chinese family, it is not easy to train a student who can be admitted by a top university in the world.