力士は対戦者と四つ相撲をします。
力士は彼の右足で対戦者の右膝に当て、対戦者の足を払います。
力士が左足を使うときは、対戦者の左膝に当てます。
二丁とは二本の足の意味です。
The sumo wrestler works as the opponent and a sumo wrestler who strongly seizes opponent's belt with both hands.
The sumo wrestler makes a hit with his right foot to the right knee of the opponent and swings a foot of the opponent.
When a sumo wrestler uses the left foot, I put it on the left knee of the opponent.
Nicho are the meanings of two feet.