知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。 知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。 d : the automatic adjustment of the attention for seeing at distinctive distances effected mainly by modifications within the convexity on the crystalline lens also : the range above which such adjustment can be done 知乎，让每一次点击都充满意义 —— 欢迎... https://ariannak703vht0.wikinarration.com/user