lit. to fall behind Sun Shan 孫山|孙山[Sun1 Shan1] (who came last in the imperial examination) (idiom) / fig. to fail an exam / to fall behind (in a competition)
to fall or drop / (of the sun) to set / (of a tide) to go out / to lower / to decline or sink / to lag or fall behind / to fall onto / to rest with / to get or receive / to write down / whereabouts / settlement