The Army has such arms as infantry,armor,artillery,air defense,Army aviation,engineering,chemical defense and communications,as well as other specialized units such as those of electronic counter-measure (ECM),reconnaissance and mapping.是什么意思_The Army has such arms as infantry,armor,artillery,air defense,Army aviation,engineering,chemical defense and communications,as well as other specialized units such as those of electronic counter-measure (ECM),reconnaissance and mapping.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句