| 释义 |
headwall
\ˈ ̷ ̷ˌ ̷ ̷\ noun
1.
a. : a precipice rising above the floor of a glacial cirque
b. : a steep slope forming the head of a valley
2. : a wall of masonry or concrete built at the outlet of a drainpipe or culvert with the end of the conduit flush with the outer surface of the wall |