involve enormous cost 意味

• 莫大｛ばくだい｝な費用｛ひよう｝［コスト］を伴う
  

例文

1. however , in the case of tanada (on a steep slope ) in western japan , the slope would have to be cut away on a large scale if agricultural fields were to be enlarged , and ancillary works including prevention of mudslides on the slope would involve enormous cost , so many of the rice terraces were not enlarged , or were abandoned and degraded .
   ただし、西日本の（急傾斜）棚田では、大規模化をしようとすると斜面を大きく削らなくてはならず、のり面の土砂崩れ対策など付帯工事の費用が莫大となるため、大規模化されなかったり、営農放棄されたりして荒廃していくところも多く見られた。