画出外边的边框，但要给起点和终点留出空间，这可以是你喜欢的任何地方。

Draw out the outside box leaving Spaces for the start and finish. These can be wherever you like.

youdao

画出外边的边框，但要给起点和终点留出空间，这可以是你喜欢的任何地方。

Draw out the outside box leaving Spaces for the start and finish. These can be wherever you like.

youdao