It transpires, for instance, that the green of the girl's costume was obtained by applying progressive strokes of black chalk to the yellowish surface of the vellum.

它可以叠色，比如说，女孩子的衣服的绿色，就是运用先进的电子黑色粉笔的笔触在微黄的牛皮纸的光界面之上触合而完成的。

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Francois Boucher's "Standing Woman Seen from Behind", a study in black, red and white chalk, is particularly captivating.

布歇的《站立女子背面像》用黑色、红色和白色粉笔绘成，格外引人注目。

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White chalk ashes fall in the classroom dyeing your black hair white but washing off our gaudiness making our youth more luxuriant ly green.

白色的粉笔灰，一阵阵地飘落在教室里，它染白了您的黑发，却洗尽了我们身上的浮华，将我们青春的绿色映衬得更加繁茂。

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If you believe black men are criminals, then when you see a black man who is a criminal you'll chalk it down as support but you'll pay less attention to evidence that white men are criminals and some black men are not criminals.

如果你相信黑人都是罪犯，当你看到一个是罪犯的黑人时,你就会觉得这是证据,但你不会注意其他证据,证明白人也有罪犯,黑人也有不是罪犯的。

耶鲁公开课 - 心理学导论课程节选

Increasingly, though, his energies were devoted to mixed-media drawings in black chalk, watercolour, pen and ink, often depicting Parisian street life: drinkers, gossips, entertainers, railway passengers.

ECONOMIST: Honor�� Daumier

Limned with equal sensitivity are two chalk drawings by Paolo Veronese, "Study of a Black Youth Eating" (c. 1580) and "Study of the Head of a Black Man" (c.1573).

WSJ: Less Familiar Faces | Revealing the African Presence in Renaissance Europe | Princeton University Art Museum | By Barrymore Laurence Scherer