The primary school is constructed on 2 levels, with superimposed walkways that allow the passage of air and light in both summer and winter.

小学建在2层，叠加步道，让夏季和冬季的空气和光自由流通。

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The school organized its students to visit the military base of the air force on Monday.

周一学校组织同学们参观了空军军事基地。

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This can be costly if schools need air conditioning on hot days and school employees need to be paid for the extra time.

如果在暑天里学校需要空调并且学校需要支付雇员的加班费，这可能耗资巨大。

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To run simulations, Guillermo Owen of the Naval Postgraduate School in Monterey, California, uses intelligence data from the US Air Force to estimate on a 100-point scale the importance a wanted man attaches to his likes (fishing, say) and priorities (remaining hidden or, at greater risk of discovery, recruiting suicide-bombers).

ECONOMIST: Modelling behaviour