| 词根词缀 |
duplicate v.加倍,复制du+pic重复+atc=重复第二份=复制★19393du,dub,doub=two,表示“二,双”dual a.二重的,二元的du+al★★6482duality n.二重的性dual+ity23997duel n.决斗du+el[=bell 斗=]二个人斗=决斗★19656dubious a.半信半疑的dub+ious_二种状态=不肯定,怀疑的★★9786indubitable a.无可置疑的in 不+dubitable可怀疑的doubt n.怀疑doubt二=二种状态=怀疑★★★★2469doubtful a.可疑的,怀疑的doubt+ful★★11751duplicate v.加倍,复制du+pic重复+atc=重复第二份=复制★19393duplicity n.二心,口是心非du+plic重复+ity=二种重复状态=二心33913duplex a.二重的,二倍的du+plex重叠=二重的26929double a.翻倍★★★★2242 |