pig.nut
n.（名词）Either of two deciduous trees(Carya glabra or C. ovalis) of the eastern United States, having pinnately compound leaves, male flowers grouped in catkins, and nuts with somewhat bitter kernels. 光滑山核桃树：美国东部的两种落叶树的一种（山核桃属 光滑山核桃 或 山核桃属 甜山核桃） ，有羽状复叶、柔荑花序的雄花和核仁带有苦味的坚果 The nut of either of these trees.光滑山核桃：这两种树任一种的果实The wood of either of these trees.光滑山核桃木：这两种树任一种的木材
