求翻译：2：使得英法的实力下降,凡尔登大战,一夜英法就损失520万军队,一时之间,出现了用人紧张的局面,美军到来,使协约国的信心提高,同时,补充了兵力和装备,是什么意思？

2: makes strength of the British and French decline, Verdun war, the night the British and French lost 5.2 million troops, while, employing the tension, the U.S. arrival, so that to improve the confidence of the Allies, while the complement of troops and equipment,

2: Causes England and France's strength drop, every you ascend the war, a night of England and France lose 5,200,000 armies, at once, had the choosing a person for a job tense aspect, the United States military arrived, causes the allies the confidence enhancement, simultaneously, has supplemented t