Suppose you have to tighten a nut of your bicycle and I tell you to do it by hand, will you be able to do it? No of course not, but what if I give you a wrench with a ...
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Suppose you have to tighten a nut of your bicycle and I tell you to do it by hand, will you be able to do it? No of course not, but what if I give you a wrench with a ...