这就是与第一次看完一位熟练的技工操作，然后自己胡乱去重组一台机械不同之处。
It's the difference between first watching an experienced mechanic, and then haphazardly trying to wing rebuilding an engine.
这就是与第一次看完一位熟练的技工操作，然后自己胡乱去重组一台机械不同之处。
It's the difference between first watching an experienced mechanic, and then haphazardly trying to wing rebuilding an engine.
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