他是位非常熟练的技工。
你不能期望一个学徒做得像熟练的技工一样灵活。
You can't expect an apprentice to have the same dexterity as a master craftsman.
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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