"Green, fat, red and thin" later became a fixed idiom, describing the scene of lush green leaves and flowers dying in late spring. Imagine when spring is in full swing: colorful flowers and beautiful leaves complement each other, no doubt. Often the latter can give us better enjoyment of beauty and leave a lasting impression in our hearts.
The red flower as the main body and the green leaf as the foil must set each other off and create amazing beauty, so does an excellent self-introduction. Whether it is a job interview, a campus interview or a postgraduate re-examination interview, self-introduction is an essential part.