当士兵带着机关枪向人群逼近时，示威者们逃跑了。
The demonstrators fled when soldiers toting machine guns advanced on the crowd.
他从背后悄悄逼近了那毫无戒备的受害者。
他发现，当掠食者的威胁逼近时，强侧化个体的进食速度是弱侧化个体的两倍。
He found that strongty-lateralised individuals were able to feed twice as fast as wealdy-lateralised ones when there was a threat of a predator looming above them.
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