doorstep

美音音标: ['dɔ:step] doorstep
英音音标: ['dɔ:step] result.0.expl|add:"

同义
doorsill doorstep threshold
词性
n
解释
the sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway
示例
None