Green Ribbon: social and public expression of support for the work of mental health, care for the mentally ill, for their own mental health concerns.

绿丝带：表达社会和公众对精神卫生工作的支持，对精神病患者的关爱，对自身精神健康的关注。

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However, hair is a very personal point of view with a public expression.

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"The scope for public expression has become much wider" said Lina Khatib, director of the Arab Reform and Democracy Program at Stanford University.

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That may happen but, more importantly, the students' protest raises the question of whether Ms Bachelet will be able to find the right balance between public expression and public order, citizen participation and effective government.

ECONOMIST: Chile