by priority 意味

• 優先的に
  

例文

1. when a stone was hit , it was removed and placed outside , and the hit stone needed to be back by priority before other stones were moved .
   切られた石は外に置かれ、切られた側は自分の番が来たとき、まずこの石を動かして戻さねば他の石を動かせない。