Bringing things to a close, Dr. Lin puts an insecticide tablet into the vase, so that the next time it rains the poison will drip down and make it impossible for larvae to survive.
末了，林博士拿出一塊白色藥塊，塞在大理石瓶口，下次再下雨，殺蟲藥順著雨水滴落，孑孓就無從活命了。