apply colours

例句：

1. 1.The artist applied the paint in careful strokes.
   艺术家用小心的笔触涂抹颜料。
2. 2. The children applied their own colors to the paper.
   孩子们用自己的颜色给纸着色。
3. 3.The painter applied several shades of blue to the canvas.
   画家在画布上涂了几层蓝色。