water chickweed

例句：

1. 1.The water chickweed is a common weed in the lake.
   水生水葫芦是湖中常见的杂草。
2. 2.The farmers used to use water chickweed as fertilizer for their crops.
   农民过去用水生水葫芦作为肥料来种植作物。
3. 3. Water chickweed can be harmful to aquatic life if not properly managed.
   如果不妥善管理，水生水葫芦对水生生物可能是有害的。