他有急事求见经理.He asked to see the manager for something urgent.因有急事我不能去参加会议.Urgent business kept me from attending the meeting.遇上急事,谁也保不住迷头.No one can guarantee to keep his head in a tight spot....
Methoxychlor consignment four major production companies, acetate cobalt, manganese acetate series of intermediate products.公司主要生产四氯苯醌 、 醋酸钴 、 醋酸锰等中间体系列产品....