原先
originally; original; former
管圆线虫
'eel worm', a parasitic worm carrying meningitis
临渊羡鱼
see 臨淵羨魚,不如退而結網|临渊羡鱼,不如退而结网[lin2 yuan1 xian4 yu2 , bu4 ru2 tui4 er2 jie2 wang3]
临渊羡鱼,不如退而结网
better to go home and weave a net than to stand by the pond longing for fish (idiom); one should take practical steps to achieve one's aim