keep us informed

keep us informed 英语；为什么是keep us informed?不是keep sb doing? keep us informed 还是 imforming of the latest news Newspapers keep us informed of the latest development帮忙翻译, keep sb informed keep sb informed of 英语翻译商务英语翻译：1.Please keep us informed of the latest quotation do we keep you informed? 译:I will keep you informed 有关短语keep sb informed about sth. keep sb informed of 加从句时要不要of please do keep me informed of the latest news.