Ms. Townsend says there must be action to improve communications, designate locations for staging emergency material and personnel and update the national emergency alert system.是什么意思_Ms. Townsend says there must be action to improve communications, designate locations for staging emergency material and personnel and update the national emergency alert system.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句