painter's putty

例句：

1. 1. The artist used painter's putty to smooth the surface of the canvas.
   艺术家使用画家用膏来平滑画布的表面。
2. 2. The sculptor used modeling clay to create a realistic figure.
   雕塑家使用模型用膏来创造一个逼真的雕像。
3. 3. The teacher applied gesso to prepare the surface for the next step in the painting process.
   老师在绘画过程中应用了底漆，为下一步做准备。