What we should pay attention to most is the clothes we wear in the defense. You can't just focus on completing your thesis defense and ignore your own gfd. Gfd plays an important role in our life. No matter where we attend, our clothes should conform to the scene at that time. Just like a wedding is a festive event, if you wear a black dress, does it feel awkward? Although it succeeded in attracting everyone's attention, it also stole the bride's limelight and had a feeling of smashing the venue.