Headway
01
进展, 前进
the forward movement or advancement made despite difficulties or obstacles
语法信息
有生性状态
抽象
形态构成
复合词
不可数
例子
The new policy helped the company gain headway in the market.
新政策帮助公司在市场上取得了进展。
02
净空, 自由高度
vertical space available to allow easy passage under something



























