n.North American waterweed; widely naturalized in Europe
同义词：Elodea canadensis
英汉双解大词典
Canadian pondweed
1.
N（名词）
a North American aquatic plant, Elodea (or Anacharis) canadensis, naturalized in Europe, having crowded dark green leaves: family Hydrocharitaceae. It is used in aquariums 加拿大眼子菜