如果人物在五英尺内，可使用充分闪光模式，在五英尺外，则需要使用完全闪光模式。

If the person is within five feet, use the fill-flash mode; beyond five feet, the full-power mode may be required.

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但是，当他举起了闪光灯照房子时，那房子已经完全浸入水中了。

But when he held his flash light to the house, it was already completely under water.

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