在他的散文《论职责》(on duties)中，西塞罗说道，据他说知，虽然对于公共演说已经定下了一些规矩，但是对于普通人交流尚还未有任何准则。

In his essay "on Duties", Cicero remarked that nobody, to his knowledge, had yet set down the rules for ordinary conversation, though many had done so for public speaking.

youdao

在他的散文《论职责》(on duties)中，西塞罗说道，据他说知，虽然对于公共演说已经定下了一些规矩，但是对于普通人交流尚还未有任何准则。

In his essay "on Duties", Cicero remarked that nobody, to his knowledge, had yet set down the rules for ordinary conversation, though many had done so for public speaking.

youdao