组装收音机的说明太复杂了，我们看不懂。
The instructions for building the radio were so complex that we could not follow them.
五十年前好学的孩子们可以拆开一个闹钟收音机或摩托车，搞清楚它是怎么运作的，甚至还能把它重新组装起来。
Fifty years ago inquisitive children could take apart a clock, radio set or motorbike, figure out how it worked, and even put it together again.
他把收音机零件拆下来，然后再重新组装。
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