This is the second time I've been out in 20 days. Through the glass, the afternoon sun and air are warm and clean, and there is a slight cold wind blowing in from the open window. Suddenly, a voice in my heart said, "You should go to the nearby park to see the birds. Don't worry about the cold, there may be no birds, etc. Just put on your clothes and go out." binoculars, and walked to the park gate in more than ten minutes. The weather was warmer than the last time I came, and there...