2. Pull the ball more explosively by "welcoming"

3. "Close your forearm according to the incoming ball"

4. The backhand of the amateur crossbar is not as good as expected

5. Take the lead shot for "hitting the ball in front"

6. When practicing basic skills. There must be rhythm

7. The center of gravity must be low

8. When hitting the ball, you must relax

9. Coordinated exertion is the foundation

1. Forward exertion is the guidance

11. Forcing fulcrum is the key

12. The exertion method is skill

13. Whipping exertion

14. And a very thin collision! ! !

18. It's better to loosen the racket when serving.

19. The harder you work, the more you swing.

2. The law of quarter

21. Laga should squat with his legs when turning the ball.

22. Marin explained that the swing was short: "Bend down and lend your strength ..."