急如星火

急如星火 [jí rú xīng huǒ]

1. ■ extremely pressing; be in hot haste; posthaste; most hurriedly; requiring lightning action; most [desperately] urgent:

雨季就要到了， 修理排灌设备是急如星火的任务。 The rainy season is coming. It's a matter of great urgency to repair the drainage and irrigation equipment.

灾区需用医药，急如星火。 Medical aid must be sent to the stricken area posthaste.