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He showed a picture of Leonardo da Vinci's famous "Mona Lisa" painting to one hundred school children from poor city neighborhoods.

VOA: special.2010.07.09

We discovered that the quantity dA, under conditions of constant volume and temperature, dA TS And A is u minus TS.

我们发现在恒定的体积和温度下，亥姆赫兹自由能的变化，小于零，is，less，than，zero。,亥姆赫兹自由能A等于内能u减去。

麻省理工公开课 - 热力学与动力学课程节选

I got the idea from a book... by Dan Brown, "Da Vinci Code".

我是从一本书里得到了灵感，是丹·布朗的《达芬奇密码》。

理想是当密码专家 - SpeakingMax英语口语达人

Pwysleisiodd yr angen i werthfawrogi'r rhan fwyaf o'r gwaith da a wnaed yn y maes hwn, yn hytrach na chanolbwyntio yn unig ar yr enghreifftiau ynysig o gam-drin.

BBC: Datganiad ar adolygiadau achosion difrifol

Busloads of people, many of whom don't know a da Vinci from a Diego Rivera, do that every day.

WSJ: The Art of Collecting

Papur Dre is a community newspaper working with Cwmni Da, a television production company and Coleg Menai, a further education college in Gwynedd.

BBC: MyTown and Papur Dre in ?100,000 boost from Nesta project