求翻译：甲、乙双方在平等、自愿、协商一致的基础上，就乙方购买甲方预售的《陆家嘴国际华城》商品房事宜，订立本合同。是什么意思？

A and B sides of equality, voluntary, consensus based on Party A Party B to purchase pre-sale of "Lujiazui International City" commercial matters, enter into this contract.

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Armor, second grade both sides in equality, voluntary, in consultative consistent foundation, the second party purchases the party of the first part to sell in advance "the Lu Jiazui International China City" the commodity apartment matters concerned, works out this contract.

A and b sides on the basis of equality, voluntary, consensus, party b to buy party a presale of the Lujiazui International China Town House, enter into this contract.

正在翻译，请等待...