加黑色或互补色，颜色加深。

Dark colors are made by adding black or a complementary color.

youdao

她正试图加深画中人面部的颜色。

She was trying to shade the face of the man in the picture.

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她在试图加深画中人面部的颜色。

She was trying to shade the face of the man in the picture.

youdao

她在试图加深画中人面部的颜色。

She was trying to shade the face of the man in the picture.

youdao