scope of a variable

例句：

1. 1. The scientist's research has greatly expanded our understandingof the universe.
   科学家的研究极大地扩展了我们对宇宙的理解。
2. 2. The artist's scopeis limited by the size of the canvas.
   艺术家的视野受到画布大小的限制。
3. 3. Thedirector's scope was to bring anew perspective to the film.
   导演的目标是为电影带来新的视角。