单词：headroom
音标：['hedru:m] ；
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
n. the capacity of a system to reproduce loud sounds without distortion
词型变化：名词复数形式 : headrooms
词性分布：
headroom的用法和样例：
例句
用作名词(n.)
- There's a lot of headroom for such a small car.这么小的一辆汽车的头上空间蛮大的。
- There is not enough headroom for buses to go under this bridge.这座桥梁下面的净空高度不够，公共汽车不能通行。