Football car line for detailed rules of football

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The detailed rules of football are as follows: football is a kind of ball game. Popular in Britain, the United States, Australia, Japan and other countries. Originated in England, it was originally called rugby football, or rugby for short. Because it is like an olive, it is called rugby in China. Rugby is a city in the middle of England, where a Rugby School is the birthplace of football. Rumor has itFootball rules
If the ball is kicked to the polar array of the attacker, the player who receives the ball has two choices: either run back with the ball, or kneel on one knee in the polar array and make a "touchback" gesture, then attack from the 20 yard line of the attacker. [first down] in American footballWhat are the duties of the football line
Linesman: facing the linesman... When looking at the chain, I found that there is also a kind of chain called Football car chain, which is a traditional peanut chain
The olive chain is a single speed chain for dead flying. Mountain bikes are variable speed and can't use the chain. The low-end 224 speed is practical KMC Z72. The quality of the silver plated antirust version is very good. In addition, there is no fake 9-speed 10 Speed old and practical x9 and X10. The quality is stable and the speed change performance is good. It should be fully platedHow do you play football
The American football kick-off rule is: after the start of each quarter or score, the kick-off party kicks off at the midpoint of 32 meters on its own side in the field. Fixed kick or drop kick can be used. Members of the same team can only stand behind the ball, while members of the other team must stand 3.05 meters away from the ball, and the ball kicked must be more than 3.05 meters awayWhich three items are included in the triathlon? Thank you for your answer
Each of the three events has specific tactics: (1) swimming. Keep moving fast during swimming; Follow the right opponent on the way; Sprint should give full play to its advantages according to the conditions at the time of the race and accelerate the completion of the race. (2) Bicycles. Set out to control the bicycle to keep stable riding; On the way, you can ride with the tail. With the help of the airflow caused by the front car, you can save energy andDetailed rules of football
The form of scoring in rugby is: 5 points for touchdown with the ball, which is called touchdown. After reaching the array, the scoring team can also kick and shoot once on the imaginary line perpendicular to the goal line through the reaching array point, and score 2 points; 3 points will be given for the penalty kick and shot obtained due to one side's foul and the drop kick and shot in the course of the gamePlease briefly introduce the rules of football
The history of rugby Rugby originated from football and rugby. The first rugby game between McGill University and Harvard University adopted the rules of rugbyName and function of each line in American football field
The football field is also called "gridiron" because of its shape and lines. Let's explain it from the outside to the inside: the direction of the game is from left to right, or from right to left, not from bottom to top. If you understand this, the rest will be easy to explainThe basic rules of football
Rules: a rugby game takes 80 minutes. There are only two halves. There is a 10 minute break between halves. Each team has 15 players, including 8 forwards and 7 defenders. Touchdown scoring is the highest scoring method in rugby: when the offensive team breaks into the defensive side, it will get a touchdown with the ball in the zone, and "touchdown" will get 5 points