以上来源于: WordNet
N the first layer in a painting, indicating the design and main areas of light and shade 画底色
The first task is to extend the underpainting using oils.
第一项任务是将打底用的油。
The second image is close to what is called a underpainting.
第二个图像是贴近被称为打底。
The purpose of painting thinly in oil at the beginning is to be able to see the guiding acrylic underpainting.
画中的薄油开始时的目的是能够看到的指导丙烯酸打底。
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