相关单词近義詞 needless 不需要的, over 在 ... 的上方..., unnecessary 不必要的, extra 額外的, superfluous 多餘的, surplus 過賸, unwanted 不需要的臨近詞unpin, UN, undiffierentiated crying, Unconsolidaled sandstone, und ergrou nd powerhouse, undistributed profit tax, undisturbed-zero ouput, Unmanned Ground Vehicles, Uncinuliella australiana, undetermined coefficient, Unpaired Contract Action, unbalance interferometer 返回 unneeded