I 've written a letter of complaint to State Rail ; somebody has got to carry the banner for better standards of service .

我已 写一封 抱怨 信给国家铁路部门，总得有人要支持提高服务标准。

Interview or obtain written statements from witnesses in relation to the complaint ;

接见有关 投诉的证人，或向他们录取 书面陈述；

A written statement of the grounds of complaint made to court law asking for the grievance to be redressed .

给法庭出据的请求伸冤的 书面 控告。

I 've written a complaint to the proprietor of the hotel .

我向旅馆老板 写信 投诉。