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講者：Speaker:
There’s people working on drones also, but we are working on it because of the wind plant, the power plant of wind turbines.
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可引用的發言段落Citable transcript turn
講者：Speaker:
There’s people working on drones also, but we are working on it because of the wind plant, the power plant of wind turbines.
j 下一段next turnk 上一段previous turn