The Ampullarius canaliculatus--Endless Trouble: Nevertheless, the cray fish has just started causing trouble, whereas the evermounting mischief of the Ampullarius canaliculatus has already taken a very visible toll.
不過螯蝦事件「方興」，對農業尚未造成大損失；福壽螺事件則至今「未艾」，農民為它花掉的成本已頗為可觀。