早知文理百科

（一）关于主送 行文应当根据公文的内容及发文、收文机关的隶属关系及职权范围确定主送机关，上行文应当坚持一个主送机关的作法，不能多头主送。多头主送往...

come from来自；They come from totally different cultures. hear from收到…的信；I didnt hear from him for a lot of years. keep from避开；I just ma...