treadling
['tredl]
[ treadling ]
n.踏木,踏板, 踏踏板v.踩踏板操作
词形变化:
名词: treadler | 动词过去式: treadled | 动词过去分词: treadled | 动词现在分词: treadling | 动词第三人称单数: treadles |