n. 净空, 车身内部高度
n. vertical space available to allow easy passage under something
n. the capacity of a system to reproduce loud sounds without distortion
1.It wasn't so bad, though. I actually had extra headroom.
没那么惨 我其实头顶上还有空间
2.I'll kill the highest bitrate to give us more headroom.
我来中止最高的带宽 以留出更多动态余量
3.We were making headroom, using the machine to build and rebuild our dream.
我们取得了一些进展 利用国家机器来建造并重建我们的梦想
