短语词组短语unsound kernels 不完善粒unsound casting 有缺陷铸件unsound d 无根据的;不结实的Economically Unsound 不合算的unsound weld 有缺陷焊缝unsound spot 有缺陷部位unsound kerneI 小麦不完善粒unsound rock 风化岩石 返回 unsound