单词	故井
释义	故井 gù jǐng舊井，老井。
随便看	fractional programmig fractional programming fractional programs fractional protein fractional purging fractional quantum hall effect fractional quantum Hall state fractional radiation therapy fractional range fractional range resolution fractional rating fractional rational function fractional reabsorption fractional reaction fractional reaction-dispersion equation fractional recovery Fractional Recurrent Sequence fractional reduction fractional relaxation-oscillation equation fractional release fractional replication fractional representation fractional resection fractional reserve fractional reserve banking