The main symptoms of this developmental malfunction are delayed language development or no language development at all, disturbed social behaviour and repetitive behaviour patterns.

这种发育失调疾病的主要症状是语言能力发育迟缓甚至完全丧失语言能力，此外包括紊乱的社会行为以及会经常会重复某一行为举止。

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Human development is based not only on innate biological states, but also on patterns of access to social knowledge.

人的成长不仅取决于内在的个体发育程度，而且取决于外在的对社会的认知阶段。

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Current development paradigms and economic patterns are responsible for many of the interlinked and growing social, environmental and economic crises facing the planet.

UNESCO: a key scientific partner in bringing the power of science to the post Rio+20 agenda for sustainable development | United Nations Educational, Scientific and Cultural Organization