Gears cia siab rau lawv tus kheej qhov ntev thiab cov khoom siv zog los tiv thaiv cov khoom siv sab nraud, uas yuav tsum muaj cov khoom siv kom muaj zog, toughness thiab hnav tsis kam;vim lub zog zoo ntawm lub zog, lub zog yuav tsum tau siab precision, thiab cov ntaub ntawv kuj ...
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