在某些地区，浮油凝结成为橙棕色的海水油胶。

In places it clots into mousse, orange and brown.

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调查，他和他的同事们挑选八种颜色——红，橙，绿，紫，蓝，黄，粉红和棕色——然后把它们分成4个深浅色单元。

To investigate, he and his colleagues picked eight colors - red, orange, green, purple, blue, yellow, pink and brown - and split each into four shades.

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虽然有部分橙，他们也有和棕色-橄榄羽毛。

Though they are partially orange, they also have and brownish-olive plumage.

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