You can spread the beam of the flashlight very far on a dark night.

在漆黑的夜晚手电的光可以传播很远。

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I could see the beam of his torch waving around in the dark.

我能够看见他的手电筒的光在黑暗中四下晃动。

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I could see the beam of his torch waving around in the dark.

我能够看见他的手电筒的光在黑暗中四下晃动。

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