He is an active advocate of positive psychology, including positive education practices and writing books like a Primer in positive psychology.

他积极推广积极心理学，通过积极教育实践和著述，例如《积极心理学入门》。

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Still further, there are provided, comprising these compositions as an active component, a paint, ink, adhesive, sealant and primer.

此外，还提供含有这些组合物作为有效成分的涂料、墨、粘合剂、密封剂和底漆。

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