zài / zhè / fēng / jiù / xìn / zhōng / xiě / xìn / rén / réng / rán / chēng / duì / fāng / wéi / zú / xià

在这封旧信中，写信人仍然称对方为“足下”。

In this old letter, the writer still addressed the other person as “足下.”