Pinyin/Axis
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Axis is the centerline that an object rotates around it.
zhóuxīn shì 1'g wùtǐ wéirào tā xuánzhuǎn d zhōngxīnxiàn.
Axis is the centerline that an object rotates around it.
zhóuxīn shì 1'g wùtǐ wéirào tā xuánzhuǎn d zhōngxīnxiàn.