It is also a determined builder of roads--whatever stands in its way gets a good clip from its pincers. When the ridges dividing wet fields are worked over by the cray fish, a field can go dry in one night--much to the exasperation of farmers. Ecologists stand in awe of its destructive powers.
它還是開路先鋒，誰阻止它的去路，就「嚓」打個洞，水田田埂常因此「蝦門」大開，田中的水一夜流盡，農民為之氣結，生態學者也都「看好」它潛力無窮的破壞力。