不动产征用是指行政主体出于公益目的，依照法定程序强制取得公民不动产使用权并依法给予补偿的制度。

Real estate requisition is a system that subjects of administration compulsorily take right of use and provide the compensation in advance by law for the public purpose.

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因此，作者试图对我国不动产法定优先购买权的效力进行深入的探讨。

Therefore, the author tried to put forward the analysis of the effect of native statutory preemption of real estate.

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