n.脊背；山脊
名词ridge的复数形式.
Erosion has truncated the ridges of the mountains. 侵蚀削去了山脊。
Ridges occur in humid regions along belts of resistant rocks. 在潮湿地区，山脊沿着耐蚀的石带发育。
n.鹧鸪
药筒
v.删节；缩短；限制
