paint brush

例句：

1. 1. She used a paintbrush to color the picture.
   她用画笔给这幅画上色。
2. 2. The artist needed a new paintbrush for his next project.
   艺术家需要一根新的画笔来完成他的下一个项目。
3. 3. The children were painting with their own paintbrushes.
   孩子们用自己的画笔在画画。