had been private时态错了,so that表目的,后面不应该用过去时
email exchanges had been private, 时态错误
had been private should use present tense.
E. Had been private使用过去完成时态不正确;a trick that enables表明这个伎俩现在已经生效,是对这个伎俩功能的一般描述;而will enable,“将会”使得,则表明这个伎俩现在还没有造成威胁
Had been private使用过去完成时态不正确;a trick that enables表明这个伎俩现在已经生效,是对这个伎俩功能的一般描述;而will enable,“将会”使得,则表明这个伎俩现在还没有造成威胁
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