到了14时30分，罗伊斯命令彼得斯和史密斯停止进攻，转而建立夜间防御阵地。
At 1430, Roise ordered Peters and Smith to break off the attack and set up night defensive positions.
在蝙蝠回声定位的选择压力下，夜间活动的蛾类进化出一系列防御、逃避等适应性特征。
Under the selective pressure of bats, nocturnal moths have evolved many adaptive traits to defense and evade bats.
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