ar.row.head
n.（名词）The pointed, removable striking tip of an arrow.箭头： 箭的尖状，可拆装能击伤的尖头Something, such as a mark indicating a limit on a drawing, that is shaped like the head of an arrow.箭头：形状像箭头的东西，如图中指示范围限制的符号
Any of various aquatic or wetland perennial plants of the genusSagittaria, having arrowhead-shaped leaves and panicles of white, unisexual flowers. 慈菇：一种慈菇属 水生或沼泽地生长的多年生植物，有箭头状叶子和白色的雌雄异花的圆锥花序 The edible tubers of the Eurasian speciesS. sagittifolia or of the North American species S. latifolia. 慈菇，宽叶慈菇：欧亚种植物的可食用块茎慈菇 或北美种植物的可食用块茎 宽叶慈菇
