giddy and insincere
In Chinese, Pinyin is f ú é RB ù sh í, which means that knowledge is shallow and foundation is not solid.
Idiom explanation
It describes that knowledge is shallow and the foundation is not solid; it describes that the style of work is superficial, not deep and not solid. It talks with the elders in a playful and disrespectful way.
Idiom usage
He always does things
giddy and insincere
be kind and have not enough courage to - xīn cí shǒu ruǎn
exhaust oneself with persuasion - héng shuō shù shuō