well-grounded
The Chinese idiom, Pinyin is Yu ā NYU á NY ǒ uz ì, which means there is basis and source. From reading Mr. Wanling's poem.
The origin of Idioms
Lu You's poem "reading Mr. Wanling's poem" in Song Dynasty: "it's hard to exercise, and it has its own origin."
Idiom usage
Used as an object or attribute; used in writing. The Chinese characters are better than her friend Feng Meiqing. For the channels and collaterals of the stock market, she is even more '~'. Mao Dun's midnight was written from the 11th century to the 4th generation of junfan. It lasted for more than a hundred years, and was given and received in the name of medicine. Preface to Shao Buqing's three medical books by Feng Guifen in Qing Dynasty
well-grounded
to believe everything in books is worse than to have no books at all - jìn xìn shū bù rú wú shū
relay on hearsay instead of seeing for oneself - yǐ ěr wéi mù
tender heart and a chivalrous spirit - róu qíng xiá gǔ
join together in practising fraud - tōng tóng zuò bì
resist foreign aggression and pacify the interior - rǎng wài ān nèi