渊

lín yuān xiàn yú

临渊羡鱼

stand on the edge of a pool and idly long for fish

tiān yuān zhī bié

天渊之别

difference between high heaven and deep sea

yú yuè yú yuān

鱼跃于渊

fish springing up to the surface of a deep pool

yuān yuǎn

渊远

broad and deep

yuān quán

渊泉

deep spring

yuān bó

渊博

erudite