新“三最口腔肌肉训练法” ——最夸张、最慢速、最频繁 经典范例： Springtime Days get longer and warmer in the spring. There are new leaves on the trees. Flowers begin to grow. Rain makes the grass green and helps the plants grow. Spring is the time of new life. Nature puts on new clothes in many colors —red, yellow, blue, white, and purple. Birds build nests in the spring. Many baby animals appear. People like to make gardens and farmers plant crops in the fields. Spring is the season for young love. “In the spring a young man’s thoughts turn to love.” according to an old saying.