她的竞选活动提高了公众对这一问题的意识，促使300多个城市和几个州考虑对手机的使用设限。
Her campaign increased public awareness of the problem and prompted over 300 cities and several states to consider restrictions on cell phone use.
研究者们从视觉心理学的角度出发，提出了各种假设限定来解决这个问题。
Based on studies of visual psychology and perception, researchers proposed various assumptions and constraints to solve the problem.
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