Underfelting
(underfelt 的现在分词) n. （垫在地毯下的）地毯垫
🗣️ 情景例句
That's a nice age. What's her name?
正是美妙年龄。她什么名字？
Cartons are seaworthy.
纸箱适合海运。
The further off this solid obstruction, the longer time will elapse for the return of the echo.
固体障碍物越远。回声返回所用时间就越长。