1、 The Army bought thousands of handheld laser dazzlers for infantrymen to use at checkpoints.
美军购买了大量的手提激光眩目器供步兵在检查站使用。
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2、 When cavalry and infantry engage in battle, one cavalryman is equivalent to how many infantrymen?
用骑兵与步兵战斗，一名骑兵相当于几名步兵？
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