anonymity
noun [ U ] uk/ˌæn.ɒnˈɪm.ə.ti/ us/ˌæn.əˈnɪm.ə.t̬i/
匿名；无名；不公开姓名
the situation in which someone's name is not given or known
The police have reassured witnesses that they will be guaranteed anonymity. 警方让目击证人放心，保证不公开他们的姓名。
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