pencil shape beam radar

例句：

1. 1. The artist drew apencil shape on the paper.
   艺术家在纸上画了一个铅笔形状。
2. 2. The teacher asked thestudents to draw a pencil shape for theproject.
   老师要求学生们为这个项目画一个铅笔形状。
3. 3. The child traced the pencilshape with his finger.
   孩子用手指描摹铅笔形状。