"Keeping" means persisting and keeping. In daily life, people often say "keep healthy", "keep clean", "keep happy" and so on, all of which require them to maintain a certain state. In physical fitness, "Keep" also refers to the habit of keeping exercise and good health. Therefore, "observing" is not only an attitude, but also an action.

"Keep" also has a special meaning in English, which means to throw the ball by hand. Throwing the ball by hand is a very interesting way of exercise, which can exercise people's reaction ability, coordination ability and visual tracking ability. Therefore, in hand throwing, "defense" is also very important, and it is necessary to constantly throw and catch the ball to maintain its movement state and rhythm.

Another important meaning of "keeping" is to keep in touch. In modern society, interpersonal relationships are becoming more and more complicated, and people often need to keep in touch in order to communicate better. So "keeping in touch" becomes very important, which means maintaining good interpersonal relations and communication skills and establishing a closer interpersonal network. At the same time, keeping in touch will also help people better understand each other and enhance their trust and willingness to cooperate.