As the birds gain more experience building nests, they drop grass less often, suggesting that they improve at their art.

由于鸟在筑巢过程中取得了更多的经验，经常只会掉下很少的草，表明它们正在不断地改善作巢技巧。

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Their house didn’t intimidate with art or polish; in fact, for many of the first years I knew Steve and Lo together, dinner was served on the grass, and sometimes consisted of just one vegetable.

他们的家既不艺术，也不优雅，实际上，自从认识乔布斯与劳伦多年以来，晚餐一般会在草地上，有时只有一个蔬菜。

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This night promises to be a celebration of two of America's most distinct musical art forms: Jazz and Blue Grass.

这个夜晚将会是两种最具美国特色的音乐体裁的一场盛会：爵士乐和蓝草音乐。

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Obama, meanwhile, has used a state-of-the-art, grass-roots organization to reach out.

NPR: McCain-Obama Battle For Latino Voters Accelerates