Italian phrase meaning "first time". Painting directly in one session with no under-drawing or painting. Usually refers to oil or acrylic painting.

意大利词汇意思是第一次，直接在一层上画，没有起稿或者其他的绘画，通常应用在油画和丙烯画上。

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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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As you progress and use these techniques you should find that the acrylic underpainting supports and adds depth and luminosity to your oil painting.

当你使用这些技术的进步和你会发现，压克力打底，并增加了支持你的深度和光度油画。

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