攻守同盟
?offensive and defensive alliance;military alliance
? agreement between partners in crime not to give each other away;pact to shield each other off
訂立～ reach an understanding not to give each other away;promise not to betray each other
攻守同盟ɡōnɡ shǒu tónɡ ménɡ
在進(jìn)攻和防守中，按照締結(jié)的盟約而采取一致的行動(dòng)。a pact to shield each other, an agreement between, partners in crime not to give each other way