词汇	weak variation
释义	weak variation 弱变化
随便看	concealing safe system concealing scanning concealing technology concealing the amount of income conceal in pocket conceal in the deep conceal investigation concealled joint concealment concealment act concealment activity concealment among relatives concealment analysis concealment and nondisclosure concealment area concealment capability Concealment channels concealment cipher concealment communication concealment figure concealment map concealment method concealment of birth concealment of identity and anonymity concealment of known defect