I'm sorry I can't help fixing your radio.
对不起我忍不住修了你的收音机。
He is adept at fixing radio set.
他擅长修理收音机。
We all looked at him fixing the radio.
我们都看着他修理收音机。
他一直在修收音机。
With my father fixing the radio set, I gathered the parts for him.
父亲在修理收音机，我则帮他收集各种零件。
He is instructed in fixing radio sets.
他精通收音机的修理。
He is instructed in fixing radio sets.
他精通收音机的修理。
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