a window on/to the worldsomething that makes it possible to see and learn about what is happening in other parts of the world 了解世界的渠道[窗口] Television provides us with a useful window on the world. 电视为我们提供了了解世界的有用渠道。
a window on/to the world• The news is also terrific for giving the boys a window on the world.• Million views Television is a window on the world with a difference.• Television is a window to the world.
→ a window on/to the world at window(1)