钢铁厂开开停停很费钱，而开采一个新矿场需要大笔资金。

Mills are expensive to turn off and on, while the capital needed to open up a new mine site is crippling.

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接着剧院暗下来，一盘胶片开开停停的一颤一颤的闪着光，密集在一起的不像人的轮廓和动作，观众中传来口哨声。

Then the theatre was dark. There was the jerking flicker of a reel starting and stopping, conglomerate unhuman figures and motion, whistles from the audience.

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