词汇	霜髭
释义	霜髭 shuāng zī白须。指胡须变白。
随便看	nucleophilic aromatic substitution nucleophilic aromatic substitution reaction nucleophilic atom localization energy nucleophilic attack nucleophilic catalysis nucleophilic catalyst nucleophilic center nucleophilic displacement nucleophilic effect nucleophilic gene nucleophilic group nucleophilic groups nucleophilicities nucleophilicity nucleophilic molecule nucleophilic opening ring nucleophilic organocatalysis nucleophilic promotor Nucleophilic radiofluorination nucleophilic reaction nucleophilic reactivity nucleophilic reagent nucleophilic reagents nucleophilic rearrangement Nucleophilic rearrangement in molecular