水草用英语来怎么说

"水草" (shuǐcǎo) is the Chinese word for aquatic plants. In English, we usually just refer to them as "aquatic plants" or "water plants."

There are many different types of aquatic plants, including floating plants, submerged plants, and emergent plants. Some examples of common aquatic plants include water lilies, lotuses, and cattails. These plants can be found in natural bodies of water such as lakes and rivers, as well as in man-made aquatic environments such as ponds and aquariums. Aquatic plants are important for the health of aquatic ecosystems, as they provide habitat and food for animals, and help to improve water quality by absorbing excess nutrients and oxygenating the water.