Replace gray and white walls with color.

用彩色的墙面替代灰色白色墙面。

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The walls of the workrooms were a dull gray color.

工场间的墙壁全是一片暗灰钯。

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The walls of the workrooms were a dull gray color.

工场间的墙壁全是一片暗灰色。

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The walls of the workrooms were a dull gray color.

工场间的墙壁全是一片暗灰色。

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