Barbara Frederickson, a leading international authority on the importance of positive emotions, says humans are genetically programmed to seek positive emotions such as love and joy.

芭芭拉·弗雷德里克森是研究积极情绪重要性的国际领先权威，她说，人类的基因决定了寻求积极情绪，比如爱和快乐。

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Now it's possible, further down the line, that the coalition might go to the U.N. Security Council to seek additional authority.

未来联军有可能向联合国安理会寻求进一步授权。

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The lack of religion might thus work to the wizarding world's disadvantage, in that people will tend to seek truth, ultimate causes, and authority figures elsewhere.

因此缺乏宗教信仰这一点可能是巫师界的一个劣势，使得人们倾向于从别处追寻真理，终极因果和权威人物。

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He said he would be seeking assurances from the chief executive at Swansea council that the authority would not seek the removal of anyone from the its public gallery for filming meetings.

BBC: Jacqui Thompson arrest: Allow council filming says Tory

The information local authority officials seek from the DVLA is often available from other sources, but at a higher cost.

BBC: DVLA bans councils from database over abuses

Mayoral sources suggested that the Greater London Authority would seek to work with the private university to establish whether any of the land it holds would be suitable for the site.

BBC: Mr Johnson with schoolchildren at Amity University