The last time I went to my girlfriend’s house, I saw her doing her homework and her girlfriend was there busy, so she asked me to help her with the laser engraving. I hadn’t used this laser engraving before, so I stared at her for half a day and didn’t know how to do it. Finally, my girlfriend was a little girl. I still feel a little embarrassed that kids are so smart right now. She says she sees mom do it a few times so she just follows the steps. I feel really out of date and rarely touches it. It seems that to keep up with the times We should learn more.