Paragraphs that can highlight the character's character (detailed actions such as expression, words and deeds should be included in the description) and make comments. Thank you! ! ! Urgently beg-

Mr. Du looks about 30 years old, with a pair of black wide-brimmed glasses on his serious rectangular face and two small eyes shining behind the glasses. Two corners of the mouth are always closed, and they don't like to talk at ordinary times. As far as I can remember, he seems to be wearing only a semi-old blue dress, and his sleeves are always pulled. Whenever class is over, he will put the book under his arm, put the remaining half piece of chalk in his pocket, lower his head, and walk slowly to his office step by step like a footprint. However, in class, he seems to be a different person. He talks a lot in class and reads the text loudly. Sometimes he is red in the face with excitement. He goes to the platform and waves his arms ... The students' attention is attracted by him. They look at him with wide eyes.

Look at her dark face, revealing an indomitable character, with a pair of glass ball-like eyes shining under her thick black eyebrows, carefully observing her opponent's every move, alert and flexible. The uneven outline outlines her unremitting pursuit of table tennis. Although she is short and not strong, she is still crazy about sports. Just like her shocking name-Thunderstorm Point, the thunder keeps coming! ★ Her opponent is now classmate Q. She lifts the table tennis board without weakness, shrugs habitually, twists her neck, squats professionally, raises her head slightly, reveals daunting eyes, and smiles and says softly, "Serve!" The yellow ball shot at her quickly, and she bent down without hesitation, waved her arm and hit it back with a bang. Who knows, the opponent is not to be outdone, and it is a direct shot. She frowned warily, stepped back with her left foot and gave the ball a hard push with her right hand, never leaving the ball for a moment. The opponent directly "killed the ball", which made her hard to prevent and lost a goal! "Damn it!" She gritted her teeth, reached for the towel, wiped her sweat and threw it back.