相关单词近义词 needless 不需要的, over 在 ... 的上方..., unnecessary 不必要的, extra 额外的, superfluous 多余的, surplus 过剩, unwanted 不需要的临近词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