Impoverished university students are the crowd who has a high incidence of harmful psychology, whose health is focused on by universities psychological educators.

高校贫困生是大学生中出现不良心理的高发人群，是高校心理健康教育工作的关注焦点之一。

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Police said this week they're focused on crowd security in light of attacks that killed three at the finish line of the Boston Marathon.

NPR: Denver Pot Holiday Bringing Crowds, Tight Security

Police said earlier in the week that they were focused on crowd security in light of attacks that killed three at the finish line of the Boston Marathon.

NPR: Gunfire Erupts At Colo. Pot Event, 2 Wounded

Wakefield's Danny Brough got the game under way at a windy Belle Vue as the players and crowd focused on the game in hand.

BBC: Wakefield 18-42 St Helens