n.

1. 无限，无穷[U]
   the infinity of the universe

   宇宙的无垠

2. 无限的距离（或时间、空间、数量等）[U]
   the infinity of stars

   星星的无限多

3. 【数】无穷大，无穷[C][U]
4. 【摄】无限远（聚焦区）；（照相机镜头的）无限远标志[C][U]
   The camera is focused at infinity.

   照相机的聚焦被调节在无限远这一档上。

n.

1. the state or quality of being infinite.
   ▸a very great number or amount.
2. Mathematics  a number greater than any assignable quantity or countable number (symbol ∞).
3. a point in space or time that is or seems infinitely distant:
   the lawns stretched into infinity.