free sketch

例句：

1. 1. He drew a free sketch of the landscape in his notebook.
   他在笔记本上画了一幅风景的自由素描。
2. 2.The artist created a free sketch to capture the essence of the scene.
   这位艺术家创作了一幅自由素描来捕捉场景的本质。
3. 3.She decided to make a free sketch of her new home before moving in.
   她决定在搬进去之前先画一张新家的免费素描。