她正在往这个枕头里填充材料，让它更柔软舒适。

She is ___stuffing this pillow to make it softer and more comfortable.

他用羽毛技法轻轻扫过画布，使边缘变得柔和。

He used ___feathering to lightly brush the canvas, softening the edges.

在编辑照片时，她使用羽化效果让背景和前景自然融合。

When editing the photo, she applied ___feathering to make the background and foreground blend naturally.