比较两篇商务信函的用语更加恰当[例文1]DearSirs，Ibegtoackno...ience.Yoursincerely,
比较两篇商务信函的用语更加恰当[例文1]DearSirs，Ibegtoackno...ience.Yoursincerely,
1
比较两篇商务信函的用语更加恰当[例文1]DearSirs，Ibegtoackno...ience.Yoursincerely,