沙里淘金

Explanation: Amoy wash with water, filter out impurities. Gold from the sand winnowed out. Metaphor of a good thing not easy. Also brought forth a parable to work less. Also be used to _select_ from a lot of material in essence. 　　Usage: Partial official; as the predicate attribute; describe the work is difficult 　　Source: "Guan Yin Zi," In my six or seven for me, such as gold dust, but not if the gold ore. Breaking the gold mine, the gold Panning, dust and life, do not get payment also. " 　　Examples: Just Piansi ~. ★ per YangJingXian "Liu of line," the third off Thesaurus:  Baomanzhaigua, Stripping cocoon spinning, wash grains of gold out of the sand, discard the dross and __select__ the essential, The way one gets along with people Sincerity, to be expert at selecting (the right person or thing ) for a job, etc., to keep the good and get rid of the bad (said of editing or, Essential and macro, get rid of the fake and retain the genuine, Jane from Sand Gold Antonym Group:  smarted up, cover up one's faults and refuse to listen to counsels, cover up one's errors by excuses, mud and sand are carried along— there is a mingling of good and bad, Whitewash, Niujigonglao, Niu Ji with the groove, Niujitongzao, hide one's sickness for fear of treatment, make a cart behind closed doors