lemna polyrhiza L

例句：

1. 1.The watercress is a popular vegetable in salads.
   水芹是沙拉中受欢迎的蔬菜。
2. 2. The dish was made with watercress and other herbs.
   这道菜是用水芹和其他草药做的。
3. 3.Watercress is rich in vitamins and minerals, making it a healthy addition to any meal.
   水芹富含维生素和矿物质，是任何一餐的健康补充。