admit of no delay;extremely pressing; most urgent; posthaste ❍ 他说军事会议必须召开，～。He said that a military conference had to be held and it admitted of no delay. ❍ 灾区需用医药，～。Medical aid must be sent to the stricken area posthaste.
急如星火ji ru xing huo
in a frantic hurry
急如星火如（于）jí rú xīnɡ huǒ
星火：流星。像流星那样一闪而过。比喻情况非常紧急。most urgent, posthaste, admit of no delay, extremely pressing