电池电压指示功能，背景光功能。

The battery voltage function, the background light function.

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加背景光，背景虚化，突出主题。

Plus background light, bokeh, highlighting the theme.

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对于中远距离和背景，你依然要依赖自然光。

You are always relying on ambient light for the mid-ground and background.

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对于中远距离和背景，你依然要依赖自然光。

You are always relying on ambient light for the mid-ground and background.

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