treadling英式朗读美式朗读基本解释(treadle 的现在分词) n. 踏木, 踏板 vi. 踏动踏板英文释义-ing form of treadle v. tread over v. operate (machinery) by a treadle词形变化原形treadle上一个单词:treadless下一个单词:treadmill