高深

gāo shēn mò cè

高深莫测

be quite beyond one's depth

xué wen gāo shēn

学问高深

great learning

jì shù gāo shēn

技术高深

consummate skill

huà tí gāo shēn

话题高深

complex topic

zào yì gāo shēn

造诣高深

high attainment

zhè bìng fēi shì xuán ào de gāo shēn lǐ lùn

这并非是玄奥的高深理论。

It is not a metaphysical theory.