silver maple

silver-maple的词性：
n.（名词）

1. A North American deciduous tree (Acer saccharinum) having palmately dissected leaves that are silvery below and light green above.
银槭：一种北美落叶树（糖槭 槭属） ，有掌状开裂叶，下面为银色、上面为浅绿色

2. The hard, brittle wood of this tree.
银槭木：这种树硬而脆的木材