Heading
01
标题, 题头
a line of text serving to indicate what the passage below it is about
语法信息
有生性状态
抽象
形态构成
复合词
可数
复数形式
headings
02
平巷, 水平巷道
a horizontal (or nearly horizontal) passageway in a mine
03
方向, 航向
the direction or path along which something moves or along which it lies
